...Foreign Office mandarins.是什么意思？

...Foreign Office mandarins.

外交部高官

foreign

adj. 外国的，外交的，外来的，不相干的，[医]异质的；

例句
The Colonial Office was absorbed into the Foreign Office.
殖民部被并入了外交部。

office

n. 办公室，办公楼，问询处，重要官

例句
The Colonial Office was absorbed into the Foreign Office.
殖民部被并入了外交部。

mandarins

N-COUNT （新闻用语）政界要人，政府高官；N-UNCOUNT 汉语普通话；N-COUNT 柑橘；N-COUNT (中国古代的)官僚，大臣；

例句
He was too new, too inexperienced, and the mandarins knew too little about him.
他资历太浅, 太没经验, 官僚们对他了解太少.