-// TODO: check / improve translation of all button.add... strings.
-'button.add_user' => '添加新用戶',
-'button.add_project' => '添加新項目',
-'button.add_activity' => '添加新活動',
-'button.add_client' => '添加新客戶',
+// TODO: translate the following.
+// 'button.add_user' => 'Add user',
+// 'button.add_project' => 'Add project',
+// 'button.add_task' => 'Add task',
+// 'button.add_client' => 'Add client',
+// 'button.add_invoice' => 'Add invoice',
+// 'button.add_option' => 'Add option',