+// TODO: translate the following.
+// 'label.client_name' => 'Client name',
+// 'label.client_address' => 'Client address',
+'label.or' => 'あるいは',
+// TODO: translate the following.
+// 'label.error' => 'Error',
+'label.ldap_hint' => '下記のフィールドにあなたの<b>WindowsのログインID</b>と<b>パスワード</b>を入力してください。',
+'label.required_fields' => '* 必須のフィールド',
+'label.on_behalf' => 'を代表して',
+// TODO: translate all 3 roles properly, see https://www.anuko.com/time_tracker/user_guide/user_accounts.htm
+// This may require different terms for role_manager and role_comanager.
+'label.role_manager' => '(管理者)',
+'label.role_comanager' => '(共同管理者)',
+// 'label.role_admin' => '(administrator)',
+// TODO: translate the following.
+// 'label.page' => 'Page',
+// 'label.condition' => 'Condition',
+// 'label.yes' => 'yes',
+// 'label.no' => 'no',
+// Labels for plugins (extensions to Time Tracker that provide additional features).
+// TODO: translate the following.
+// 'label.custom_fields' => 'Custom fields',
+// 'label.monthly_quotas' => 'Monthly quotas',
+// 'label.type' => 'Type',
+// 'label.type_dropdown' => 'dropdown',
+// 'label.type_text' => 'text',
+// 'label.required' => 'Required',
+'label.fav_report' => 'お気に入りレポート',
+// TODO: translate the following.
+// 'label.schedule' => 'Schedule',
+// 'label.what_is_it' => 'What is it?',
+// 'label.expense' => 'Expense',
+// 'label.quantity' => 'Quantity',
+// 'label.paid_status' => 'Paid status',
+// 'label.paid' => 'Paid',
+// 'label.mark_paid' => 'Mark paid',
+// 'label.week_note' => 'Week note',
+// 'label.week_list' => 'Week list',
+// 'label.work_units' => 'Work units',
+// 'label.work_units_short' => 'Units',
+'label.totals_only' => '全体だけ',
+// TODO: translate the following.
+// 'label.quota' => 'Quota',
+// 'label.timesheet' => 'Timesheet',
+// 'label.submitted' => 'Submitted',
+// 'label.approved' => 'Approved',
+// 'label.approval' => 'Report approval',
+// 'label.mark_approved' => 'Mark approved',
+// 'label.template' => 'Template',
+// 'label.attachments' => 'Attachments',
+// 'label.files' => 'Files',
+// 'label.image' => 'Image',
+
+// Form titles.
+// TODO: Translate the following.
+// 'title.error' => 'Error',
+// 'title.success' => 'Success',
+'title.login' => 'ログイン',
+'title.groups' => 'チーム', // TODO: change "teams" to "groups".
+// TODO: translate the following.
+// 'title.subgroups' => 'Subgroups',
+// 'title.add_group' => 'Adding Group',
+// 'title.edit_group' => 'Editing Group',
+'title.delete_group' => 'チームの削除', // TODO: change "team" to "group".
+'title.reset_password' => 'パスワードの初期化',
+// TODO: translate the following.
+// 'title.change_password' => 'Changing Password',
+'title.time' => '時間',
+'title.edit_time_record' => '時間レコードの編集',
+'title.delete_time_record' => '時間レコードの削除',
+// TODO: translate the following.
+// 'title.expenses' => 'Expenses',
+// 'title.edit_expense' => 'Editing Expense Item',
+// 'title.delete_expense' => 'Deleting Expense Item',
+// 'title.predefined_expenses' => 'Predefined Expenses',
+// 'title.add_predefined_expense' => 'Adding Predefined Expense',
+// 'title.edit_predefined_expense' => 'Editing Predefined Expense',
+// 'title.delete_predefined_expense' => 'Deleting Predefined Expense',
+'title.reports' => 'レポート',
+'title.report' => 'レポート',
+// TODO: translate the following.
+// 'title.send_report' => 'Sending Report',
+// 'title.timesheets' => 'Timesheets',
+// 'title.timesheet' => 'Timesheet',
+'title.invoice' => '送り状',
+// TODO: translate the following.
+// 'title.send_invoice' => 'Sending Invoice',
+// 'title.charts' => 'Charts',
+'title.projects' => 'プロジェクト',
+// TODO: translate the following.
+// 'title.project_files' => 'Project Files',
+'title.add_project' => 'プロジェクトの追加',
+'title.edit_project' => 'プロジェクトの編集',
+'title.delete_project' => 'プロジェクトの削除',
+// TODO: translate the following.
+// 'title.tasks' => 'Tasks',
+// 'title.add_task' => 'Adding Task',
+// 'title.edit_task' => 'Editing Task',
+// 'title.delete_task' => 'Deleting Task',
+'title.users' => 'ユーザー',
+'title.add_user' => 'ユーザーの作成',
+'title.edit_user' => 'ユーザーの編集',
+'title.delete_user' => 'ユーザーの削除',
+// TODO: translate the following.
+// 'title.roles' => 'Roles',
+// 'title.add_role' => 'Adding Role',
+// 'title.edit_role' => 'Editing Role',
+// 'title.delete_role' => 'Deleting Role',
+'title.clients' => 'クライアント',
+'title.add_client' => 'クライアントの追加',
+'title.edit_client' => 'クライアントの編集',
+'title.delete_client' => 'クライアントの削除',
+'title.invoices' => '送り状',
+// TODO: translate the following.
+// 'title.add_invoice' => 'Adding Invoice',
+// 'title.view_invoice' => 'Viewing Invoice',
+// 'title.delete_invoice' => 'Deleting Invoice',
+// 'title.notifications' => 'Notifications',
+// 'title.add_notification' => 'Adding Notification',
+// 'title.edit_notification' => 'Editing Notification',
+// 'title.delete_notification' => 'Deleting Notification',
+// 'title.add_timesheet' => 'Adding Timesheet',
+// 'title.edit_timesheet' => 'Editing Timesheet',
+// 'title.delete_timesheet' => 'Deleting Timesheet',
+// 'title.monthly_quotas' => 'Monthly Quotas',
+// 'title.export' => 'Exporting Group Data',
+// 'title.import' => 'Importing Group Data',
+'title.options' => 'オプション',
+'title.profile' => 'プロファイル',
+// TODO: translate the following.
+// 'title.plugins' => 'Plugins',
+// 'title.cf_custom_fields' => 'Custom Fields',
+// 'title.cf_add_custom_field' => 'Adding Custom Field',
+// 'title.cf_edit_custom_field' => 'Editing Custom Field',
+// 'title.cf_delete_custom_field' => 'Deleting Custom Field',
+// 'title.cf_dropdown_options' => 'Dropdown Options',
+// 'title.cf_add_dropdown_option' => 'Adding Option',
+// 'title.cf_edit_dropdown_option' => 'Editing Option',
+// 'title.cf_delete_dropdown_option' => 'Deleting Option',
+// NOTE TO TRANSLATORS: Locking is a feature to lock records from modifications (ex: weekly on Mondays we lock all previous weeks).
+// It is also a name for the Locking plugin on the group settings page.
+// 'title.locking' => 'Locking',
+// 'title.week_view' => 'Week View',
+// 'title.swap_roles' => 'Swapping Roles',
+// 'title.work_units' => 'Work Units',
+// 'title.templates' => 'Templates',
+// 'title.add_template' => 'Adding Template',
+// 'title.edit_template' => 'Editing Template',
+// 'title.delete_template' => 'Deleting Template',
+
+// Section for common strings inside combo boxes on forms. Strings shared between forms shall be placed here.
+// Strings that are used in a single form must go to the specific form section.
+'dropdown.all' => '--- すべて ---',
+'dropdown.no' => '--- いいえ ---',
+'dropdown.current_day' => '今日',
+'dropdown.previous_day' => '昨日',
+'dropdown.selected_day' => '日',
+'dropdown.current_week' => '今週',
+'dropdown.previous_week' => '先週',
+'dropdown.selected_week' => '週',
+'dropdown.current_month' => '今月',
+'dropdown.previous_month' => '先月',
+'dropdown.selected_month' => '月',
+'dropdown.current_year' => '今年',
+'dropdown.previous_year' => '昨年',
+'dropdown.selected_year' => '年',
+'dropdown.all_time' => 'すべての時間',
+'dropdown.projects' => 'プロジェクト',
+// TODO: translate the following.
+// 'dropdown.tasks' => 'tasks',
+// 'dropdown.clients' => 'clients',
+// 'dropdown.select' => '--- select ---',
+// 'dropdown.select_invoice' => '--- select invoice ---',
+// 'dropdown.select_timesheet' => '--- select timesheet ---',
+// 'dropdown.status_active' => 'active',
+// 'dropdown.status_inactive' => 'inactive',
+// 'dropdown.delete' => 'delete',
+// 'dropdown.do_not_delete' => 'do not delete',
+// 'dropdown.approved' => 'approved',
+// 'dropdown.not_approved' => 'not approved',
+// 'dropdown.paid' => 'paid',
+// 'dropdown.not_paid' => 'not paid',
+
+// Login form. See example at https://timetracker.anuko.com/login.php.
+'form.login.forgot_password' => 'パスワードを忘れましたか?',
+// TODO: translate the following.
+// 'form.login.about' => 'Anuko <a href="https://www.anuko.com/lp/tt_2.htm" target="_blank">Time Tracker</a> is a simple, easy to use, open source time tracking system.',
+
+// Resetting Password form. See example at https://timetracker.anuko.com/password_reset.php.
+'form.reset_password.message' => '送信したパスワードの初期化の要求。', // TODO: add "by email" to match the English string.
+'form.reset_password.email_subject' => 'Anuko Time Trackerのパスワードの初期化の要求',
+// TODO: translate the ending of this string.
+// TODO: English string has changed. "from IP added. Re-translate the beginning.
+// 'form.reset_password.email_body' => "Dear User,\n\nSomeone from IP %s requested your Anuko Time Tracker password reset. Please visit this link if you want to reset your password.\n\n%s\n\nAnuko Time Tracker is a simple, easy to use, open source time tracking system. Visit https://www.anuko.com for more information.\n\n",
+// Older translation is below.
+// 'form.reset_password.email_body' => "尊敬なるお客様、\n\n誰から(多分あなた)あなたのAnuko Time Trackerのパスワードの初期化が要求されました。あなたのパスワードを初期化しようとこのリンクを押してください。\n\n%s\n\nAnuko Time Tracker is a simple, easy to use, open source time tracking system. Visit https://www.anuko.com for more information.\n\n",
+
+
+// Changing Password form. See example at https://timetracker.anuko.com/password_change.php?ref=1.
+// TODO: translate the following.
+// 'form.change_password.tip' => 'Type new password and click on Save.',
+
+// Time form. See example at https://timetracker.anuko.com/time.php.
+// TODO: translate the following.
+'form.time.duration_format' => '(hh:mm あるいは 0.0h)', // TODO: is there a better term for hh:mm as a hint to user what to enter?
+'form.time.billable' => '請求できる',
+'form.time.uncompleted' => '未完成の',
+// TODO: translate the following.
+// 'form.time.remaining_quota' => 'Remaining quota',
+// 'form.time.over_quota' => 'Over quota',
+// 'form.time.remaining_balance' => 'Remaining balance',
+// 'form.time.over_balance' => 'Over balance',
+
+// Editing Time Record form. See example at https://timetracker.anuko.com/time_edit.php (get there by editing an uncompleted time record).
+'form.time_edit.uncompleted' => 'このレコードは開始時間だけで保存されました。これはエラーではありません。',
+
+// Week view form. See example at https://timetracker.anuko.com/week.php.
+// TODO: translate the following.
+// 'form.week.new_entry' => 'New entry',
+
+// Reports form. See example at https://timetracker.anuko.com/reports.php
+'form.reports.save_as_favorite' => 'お気に入りに保存',
+'form.reports.confirm_delete' => 'このお気に入りレポートを削除しますか?',
+// TODO: translate the following.
+'form.reports.include_billable' => '請求できる',
+'form.reports.include_not_billable' => '請求できません',
+// TODO: translate the following.
+// 'form.reports.include_invoiced' => 'invoiced',
+// 'form.reports.include_not_invoiced' => 'not invoiced',
+// 'form.reports.include_assigned' => 'assigned',
+// 'form.reports.include_not_assigned' => 'not assigned',
+// 'form.reports.include_pending' => 'pending',
+'form.reports.select_period' => '時間期間の選択',
+'form.reports.set_period' => 'あるいは日付を設定',
+'form.reports.show_fields' => 'フィールドの表示',
+'form.reports.group_by' => '次のようにグループ化',
+'form.reports.group_by_no' => '--- グループの機能がありません ---',
+'form.reports.group_by_date' => '日付',
+'form.reports.group_by_user' => 'ユーザー',
+// TODO: translate the following.
+// 'form.reports.group_by_client' => 'client',
+'form.reports.group_by_project' => 'プロジェクト',
+// TODO: translate the following.
+// 'form.reports.group_by_task' => 'task',
+
+// Report form. See example at https://timetracker.anuko.com/report.php
+// (after generating a report at https://timetracker.anuko.com/reports.php).
+'form.report.export' => '輸出する', // TODO: is this correct?
+// TODO: translate the following.
+// 'form.report.assign_to_invoice' => 'Assign to invoice',
+// 'form.report.assign_to_timesheet' => 'Assign to timesheet',
+
+// Timesheets form. See example at https://timetracker.anuko.com/timesheets.php
+// TODO: translate the following.
+// 'form.timesheets.active_timesheets' => 'Active Timesheets',
+// 'form.timesheets.inactive_timesheets' => 'Inactive Timesheets',
+
+// Templates form. See example at https://timetracker.anuko.com/templates.php
+// TODO: translate the following.
+// 'form.templates.active_templates' => 'Active Templates',
+// 'form.templates.inactive_templates' => 'Inactive Templates',
+
+// Invoice form. See example at https://timetracker.anuko.com/invoice.php
+// (you can get to this form after generating a report).
+'form.invoice.number' => '送り状の番号',
+'form.invoice.person' => '個人',
+
+// Deleting Invoice form. See example at https://timetracker.anuko.com/invoice_delete.php
+// 'form.invoice.invoice_to_delete' => 'Invoice to delete',
+// 'form.invoice.invoice_entries' => 'Invoice entries',
+// 'form.invoice.confirm_deleting_entries' => 'Please confirm deleting invoice entries from Time Tracker.',
+
+// Charts form. See example at https://timetracker.anuko.com/charts.php
+// TODO: translate the following.
+// 'form.charts.interval' => 'Interval',
+// 'form.charts.chart' => 'Chart',
+
+// Projects form. See example at https://timetracker.anuko.com/projects.php
+// TODO: translate the following.
+// 'form.projects.active_projects' => 'Active Projects',
+// 'form.projects.inactive_projects' => 'Inactive Projects',
+
+// Tasks form. See example at https://timetracker.anuko.com/tasks.php
+// TODO: translate the following.
+// 'form.tasks.active_tasks' => 'Active Tasks',
+// 'form.tasks.inactive_tasks' => 'Inactive Tasks',
+
+// Users form. See example at https://timetracker.anuko.com/users.php
+// TODO: translate the following.
+// 'form.users.active_users' => 'Active Users',
+// 'form.users.inactive_users' => 'Inactive Users',
+// 'form.users.uncompleted_entry' => 'User has an uncompleted time entry',
+'form.users.role' => '役割', // TODO: is this correct?
+'form.users.manager' => '管理者',
+'form.users.comanager' => '共同管理者',
+'form.users.rate' => '給料',
+'form.users.default_rate' => 'デフォルト時間当り給料',
+
+// Editing User form. See example at https://timetracker.anuko.com/user_edit.php
+// TODO: translate the following.
+// 'form.user_edit.swap_roles' => 'Swap roles',
+
+// Roles form. See example at https://timetracker.anuko.com/roles.php
+// TODO: translate the following.
+// 'form.roles.active_roles' => 'Active Roles',
+// 'form.roles.inactive_roles' => 'Inactive Roles',
+// 'form.roles.rank' => 'Rank',
+// 'form.roles.rights' => 'Rights',
+// 'form.roles.assigned' => 'Assigned',
+// 'form.roles.not_assigned' => 'Not assigned',
+
+// Clients form. See example at https://timetracker.anuko.com/clients.php
+// TODO: translate the following.
+// 'form.clients.active_clients' => 'Active Clients',
+// 'form.clients.inactive_clients' => 'Inactive Clients',
+
+// Deleting Client form. See example at https://timetracker.anuko.com/client_delete.php
+// TODO: translate the following.
+// 'form.client.client_to_delete' => 'Client to delete',
+// 'form.client.client_entries' => 'Client entries',
+
+// Exporting Group Data form. See example at https://timetracker.anuko.com/export.php
+// TODO: replace "team" with "group" in the string below.
+'form.export.hint' => 'あなたはすべてのチームのデータをxmlファイルにエクスポートすることができます。これはあなたの自分のサーバに移動する時に有用します。',
+'form.export.compression' => '圧縮',
+'form.export.compression_none' => 'なし',
+'form.export.compression_bzip' => 'bzip',
+
+// Importing Group Data form. See example at https://timetracker.anuko.com/import.php (login as admin first).
+'form.import.hint' => 'xmlファイルからチームのデータをインポート。', // TODO: replace "team" with "group".
+'form.import.file' => 'ファイルの選択',
+'form.import.success' => 'インポートが成功的に完了されました。',
+
+// Groups form. See example at https://timetracker.anuko.com/admin_groups.php (login as admin first).
+// TODO: replace "team" with "group" in the string below.
+'form.groups.hint' => '新規チームの管理者のアカウントを生成して新規チームを作成します。<br>あなたはなお他のAnuko Time Trackerサーバのxmlのファイルからチームデータをインポートすることができます(ログインの衝突は許可されません)。',
+
+// Group Settings form. See example at https://timetracker.anuko.com/group_edit.php.
+// TODO: translate the following.
+// 'form.group_edit.12_hours' => '12 hours',
+// 'form.group_edit.24_hours' => '24 hours',
+// 'form.group_edit.show_holidays' => 'Show holidays',
+// 'form.group_edit.tracking_mode' => 'Tracking mode',
+// 'form.group_edit.mode_time' => 'time',
+// 'form.group_edit.mode_projects' => 'projects',
+// 'form.group_edit.mode_projects_and_tasks' => 'projects and tasks',
+// 'form.group_edit.record_type' => 'Record type',
+// 'form.group_edit.type_all' => 'all',
+// 'form.group_edit.type_start_finish' => 'start and finish',
+// 'form.group_edit.type_duration' => 'duration',
+// 'form.group_edit.punch_mode' => 'Punch mode',
+// 'form.group_edit.allow_overlap' => 'Allow overlap',
+// 'form.group_edit.future_entries' => 'Future entries',
+// 'form.group_edit.uncompleted_indicators' => 'Uncompleted indicators',
+// 'form.group_edit.confirm_save' => 'Confirm saving',
+// 'form.group_edit.allow_ip' => 'Allow IP',
+
+// Deleting Group form. See example at https://timetracker.anuko.com/delete_group.php
+// TODO: translate the following.
+// 'form.group_delete.hint' => 'Are you sure you want to delete the entire group?',
+
+// Mail form. See example at https://timetracker.anuko.com/report_send.php when emailing a report.
+'form.mail.from' => 'から',
+'form.mail.to' => 'まで',
+// TODO: translate the following.
+// 'form.mail.report_subject' => 'Time Tracker Report',
+// 'form.mail.footer' => 'Anuko Time Tracker is a simple, easy to use, open source<br>time tracking system. Visit <a href="https://www.anuko.com">www.anuko.com</a> for more information.',
+// 'form.mail.report_sent' => 'Report sent.',
+'form.mail.invoice_sent' => '送信した送り状。',
+
+// Quotas configuration form. See example at https://timetracker.anuko.com/quotas.php after enabling Monthly quotas plugin.
+// TODO: translate the following.
+// 'form.quota.year' => 'Year',
+// 'form.quota.month' => 'Month',
+// 'form.quota.workday_hours' => 'Hours in work day',
+// 'form.quota.hint' => 'If values are empty, quotas are calculated automatically based on workday hours and holidays.',
+
+// Swap roles form. See example at https://timetracker.anuko.com/swap_roles.php.
+// TODO: translate the following.
+// 'form.swap.hint' => 'Demote yourself to a lower role by swapping roles with someone else. This cannot be undone.',
+// 'form.swap.swap_with' => 'Swap roles with',
+
+// Work Units configuration form. See example at https://timetracker.anuko.com/work_units.php after enabling Work units plugin.
+// TODO: translate the following.
+// 'form.work_units.minutes_in_unit' => 'Minutes in unit',
+// 'form.work_units.1st_unit_threshold' => '1st unit threshold',
+
+// Roles and rights. These strings are used in multiple places. Grouped here to provide consistent translations.
+// TODO: translate the following.
+// 'role.user.label' => 'User',
+// 'role.user.low_case_label' => 'user',
+// 'role.user.description' => 'A regular member without management rights.',
+// 'role.client.label' => 'Client',
+// 'role.client.low_case_label' => 'client',
+// 'role.client.description' => 'A client can view its own data.',
+// 'role.supervisor.label' => 'Supervisor',
+// 'role.supervisor.low_case_label' => 'supervisor',
+// 'role.supervisor.description' => 'A person with a small set of management rights.',
+// 'role.comanager.label' => 'Co-manager',
+// 'role.comanager.low_case_label' => 'co-manager',
+// 'role.comanager.description' => 'A person with a big set of management functions.',
+// 'role.manager.label' => 'Manager',
+// 'role.manager.low_case_label' => 'manager',
+// 'role.manager.description' => 'Group manager. Can do most of things for a group.',
+// 'role.top_manager.label' => 'Top manager',
+// 'role.top_manager.low_case_label' => 'top manager',
+// 'role.top_manager.description' => 'Top group manager. Can do everything in a tree of groups.',
+// 'role.admin.label' => 'Administrator',
+// 'role.admin.low_case_label' => 'administrator',
+// 'role.admin.description' => 'Site adminsitrator.',