covert

covert的英语例句

1. The army carried out covert surveillance of the building for several months.

   军队对这座建筑物进行了数月的秘密监视.

2. 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。

3. 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。