I wrote the Publicity Department a letter.

我给宣传部写了一封信。

I wrote a letter to the Publicity Department.

我给宣传部写了一封信。

This project needs to be responsible for corporate safety management and publicity department.

这一工程需要企业安全管理部门和宣传部门共同负责。

Even though he no longer heads the company, he gains millions of dollars in profits from the advertising generated about him from the Dreamworks publicity department.

尽管他不再领导该公司，但他从梦工厂的公关部门通过与他相关的广告仍能得到数以百万计的美圆。

Afraid of bad publicity, the department had suddenly become very twitchy about journalists.

该部门害怕有媒体的负面宣传，在面对记者时突然变得焦躁不安。