// 'title.send_report' => 'Sending Report',
// 'title.timesheets' => 'Timesheets',
// 'title.timesheet' => 'Timesheet',
+// 'title.timesheet_files' => 'Timesheet Files',
'title.invoice' => '發票',
// TODO: translate the following.
// 'title.send_invoice' => 'Sending Invoice',