信是从城里寄来的，只是一封公函。

It came from town, and is merely a letter of business.

youdao

她收到了一封解释性的 公函 。

She received an official letter of explanation .

youdao

她今天早晨收到了几封公函。

She received several official letters this morning.

youdao

她收到了一封解释性的公函。

She received an official letter of explanation.

youdao

这封信应写成公函的形式。

The letter should be written in an official style.

youdao

没说，太太。信是从城里寄来的，只是一封公函。

No, ma 'am. It came from town, and is merely a letter of business.

youdao

提交单位申请公函；

Official letter of application of the unit;

youdao

提交单位申请公函；

Official letter of application of the unit;

youdao