1、the government department in charge of foreign relations.
負責外交事務的政府部門。

2、the department in charge of the navy (as in Great Britain).
掌管海軍的部門（如在大不列顛英國）。

3、The governmental department in charge of naval affairs in some nations.
海軍部某些國家中掌管海軍事務的政府部門

department in charge翻譯