a cover

A cover letter should never exceed one page; often a far shorter letter will suffice.

附信不应超过一页，通常来说，一封相对非常简短的信就足够了。

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。

Protect your trailer hitch by using the ball as a cover.

用旧网球作盖子，保护你的拖车挂钩。

'Your modesty is a cover for your overweening conceit,' she said.

“你表面谦虚，骨子里目中无人。”她说道。

Please cover the jar with a cover.

请用盖子把瓶子盖上。

The jewellery firm is just a cover for its illegal trade in diamonds.

这家珠宝公司不过是进行非法钻石交易的幌子。

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。

As a cover story he generally tells people he is a freelance photographer.

为掩饰身份，他一般对外称自己是一名自由摄影师。

The single is a cover of an old Rolling Stones song.

这支单曲是滚石乐队的一首老歌的翻唱。

She draped a cover over the old sofa.

她把套子罩在旧沙发上。