外联部的英文：
liaison department

liaison是什么意思：
n. 联络；私通；联络人；连音

The reduction of an embassy to a liaison office surprised us.
大使馆降级为联络处使我们很惊讶。

She embarked on a series of sexual liaisons with society figures.
她开始接二连三地与社会名流有染。

He had already contracted a liaison with some girl.
他和某个姑娘私通。

Walters was in charge of the liaison work between Kissnger and the Chinese ambassador
沃尔特斯负责基辛格和大国大使的联系工作。

During the War of Resistance the Kuomintang kept a staff officer in Yenan for liaison
〔7〕抗日战争时期国民党政府指派一个人员到延安做联络工作。

department是什么意思：
n. 部，司，局，科，部门；（大学的）系

A government department or a subdivision of a department.
局司处等行政单位政府部门或其下属机构

He's the departed department leader.
他是过去的部门领导。

The bulk of the work rolls from department to department.
大量的工作从一个部门转移到另一个部门。

The accounting department is independent of all the other departments.
会计部门是独立于其它所有部门的。

depart out of this world
逝世|去世