我表哥是一位驻伦敦的西班牙外交官。

My cousin is a Spanish ___diplomat stationed in London.

这家餐厅的老板曾是一位外交官，经常招待国际宾客。

The restaurant owner was a former ___diplomat who often hosted international guests.

这位外交官孜孜不倦地致力于改善两个邻国之间的关系。

The ___diplomat worked tirelessly to improve relations between the two neighbouring countries.