under cover

基本解释

Sow them under cover anytime in the next two weeks and they'll both be in flower for early summer.
今後兩周無論哪一天把這兩種花籽灑在土裡蓋好，初夏時節就都開花了。
Gandhi the truth-teller died at the hands of his killers, some of whom, Jim Douglass alleges, walked away scot-free under cover of self-preserving lies.
甘地---這位真理的講述著終於死在暗殺者的手裡。道格拉斯宣稱，一些暗殺者，在反對者的保護下平安的離開了。
On 16 and 17 September 1976, masked men raided their homes under cover of darkness, taking them away to clandestine detention centres in what became known as the "Night of the Pencils".
1976年9月16日和17日，一些矇麪男子在夜色下突襲了他們的住所，將他們帶到了後來以“鉛筆之夜”而聞名的秘密拘畱中心。

Critics,including the Australian government, say the research argument is a cover for the sale and consumption of whale meat, which is banned under international regulations.
Critics,including the Australian and New Zealand governments, say such arguments are a cover for the sale and consumption of whale meat, which is banned under an international moratorium on commercial hunting.
The speaker of Iran's parliament, All this iusses indicate the fact that the US president is pursuing the arrogant and dominating approach of the past but under the cover of public-deceiving gestures.

Under cover of operations in Afghanistan, America has beefed up its forces in the Gulf.
ECONOMIST: Saddam Hussein reopens talks on weapons inspection

Undercover work involves secretly obtaining information for the government or the police.
Undercover is also an adverb.