外交系的英文：
Department of Diplomacy

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

diplomacy是什么意思：
n. 外交；外交手段；策略，手段

quiet diplomacy
静默外交; 悄悄的外交; 秘密外交

The Prefect was fond of the cant of diplomacy.
这位警察局长很爱好外交辞令。

Diplomacy will smooth your pathway to success.
良好的交际会铺平你的成功之路。

The new ambassador is highly experienced in international diplomacy.
新外交官在国际外交方面经验丰富。

Diplomacy secured the cooperation that confrontation had failed to elicit.
圆滑的外交手段加强了采用对抗无法实现的合作。