这份档案包含了他的工作经历。

Zhè fèn dàng'àn bāohánle tā de gōngzuò jīnglì.

This file includes his work experience.

我们需要整理和更新客户档案。

Wǒmen xūyào zhěnglǐ hé gēngxīn kèhù dàng'àn.

We need to organize and update customer records.

档案管理员负责保管机密文件。

Dàng'àn guǎnlǐyuán fùzé bǎoguǎn jīmì wénjiàn.

The file manager is responsible for safeguarding confidential documents.