coverts
n. 隐蔽的,不公开的,秘密的( covert的名词复数 ); 复羽
Covert activities or situations are secret or hidden.
They have been supplying covert military aid to the rebels...
他们一直在暗地里向叛乱者提供军事支援。
The depth of covert racism in my own profession frightens me.
我所从事的职业中暗藏着如此深的种族主义偏见,这让我感到害怕。
A covert is a group of small trees or bushes very close to each other where small animals or game birds can hide.