cover up

1. (完全)盖住; 遮住; 裹住

Cover yourself up well. It's cold outside.

穿得暖和一些。外面很冷。

He had forgotten to have the machine covered up.

他忘了把机器盖起来。

2. 掩盖

How can you cover up your mistake?

你怎么能把自己的错误掩盖起来呢?

from cover to cover

1. 从头到尾

You should read this book from cover to cover.

你应该把这本书从头到尾看一遍。

take cover

1. 隐蔽

As soon as it began to rain they took cover under a big tree.

一开始下雨, 他们就躲到一棵大树下面。

under (the) cover of

1. 在……掩护下

The criminal escaped under the cover of darkness.

那罪犯在夜幕的掩护下逃走了。