aide-de-camp

aide-de-camp
/ˌeɪd də ˈkɔm; ?@ ˈkæmp; `eddə`kæmp/ (also aide) n (pl aides-de-camp / 9eId
dE 5kCm; `eddE`kAmp/) (abbr 缩写 ADC) naval or military officer who acts as assistant to a senior officer （海军或陆军的高级长官的）副官.

牛津英汉双解词典