not openly acknowledged or displayed
隐蔽的;秘密的;隐藏的
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covert operations against the dictatorship 反对独裁政府的秘密行动。
a thicket in which game can hide
(猎物藏身的)丛林。
【鸟】 覆羽。
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covertadj.隐蔽的;秘密的;隐藏的
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coverv.盖;覆盖;遮盖;处理;涉及;包括;论及;足以支付;够支付;掩盖;掩饰;用枪瞄准;盖打;转录;翻录;模仿演唱;与…交配
"Middle English (in the general senses ‘covered' and ‘a cover’): from Old French, ‘covered', past participle of