covert

祕密的、暗中的、隱密的

The agency ran a covert operation to track the smugglers.

該情報機構執行了一項祕密行動以追蹤走私者。

不明顯的、隱含的、含蓄的

She noticed the covert hostility behind his polite smile.

她察覺到他禮貌笑容背後那種隱含的敵意。

掩蔽處、樹叢少用

The pheasants scattered into a thick covert beside the field.

野雞四散躲進田邊茂密的樹叢裡。