desk file

例句：

1. 1. She kept her desk file in the drawer for safekeeping.
   她把办公桌文件放在抽屉里保存。
2. 2.The secretary was asked to retrieve the desk file from the conference room.
   秘书被要求从会议室取回办公桌文件。
3. 3. Before leaving the office, she always made sure to backup her desk file.
   离开办公室前，她总是确保备份她的办公桌文件。