He ran a construction company as a cover for drug dealing.

他经营了一家建筑公司，作为毒品交易的掩护。

《柯林斯英汉双解大词典》

Her over-confident attitude was a cover for her nervousness.

她以过分自信的态度来掩饰她紧张的心情。

《牛津词典》

Some of the commercial activities were a cover for espionage.

有些商业活动是为间谍活动提供掩护。

《牛津词典》

Blair said North Korea is using its upcoming space launch as a cover for its intercontinental ballistic missile program.

VOA: standard.2009.03.26

An insurance company has reserves and it has enough reserves to cover them for a certain number of accidents.

保险公司一般都有准备金,准备金的数量一般保持在,刚刚够赔偿一定数量的保单

耶鲁公开课 - 金融市场课程节选

And so, it would be a shame for me not to use them to cover some of these issues.

如果不能请到他们来帮助我教授这些主题,那可就太可惜了

耶鲁公开课 - 心理学导论课程节选

So if it's not exclusively white, is it just a cover for a wider Islamophobia?

BBC: Who are the English Defence League?

Many were living with Chinese women as a cover for their spying, he said.

ECONOMIST: A vital relationship survives a critical test

The North's launch was seen as a cover for a long-range missile test, and prompted UN sanctions.

BBC: South Korea rocket 'explodes' moments after take-off