detachment
noun uk/dɪˈtætʃ.mənt/ us/dɪˈtætʃ.mənt/
(ARMY GROUP)
[ C, + sing/pl verb ]小分队，支队，行动小组
a group of soldiers who are separated from the main group in order to perform a particular duty
a military detachment 军事行动小组
A detachment of Italian soldiers was sent to the area. 一支由意大利士兵组成的小分队被派往了该地区。
(NO EMOTION)
[ U ]超然;淡漠
a feeling of not being emotionally involved
to have an air of detachment 一副事不关己的样子