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1·The glass cover for this is jointed in the middle.

这个东西的玻璃盖是用活动接头从中间接起来的。《柯林斯英汉双解大词典》

2·Review all the notes you need to cover for each course.

复习所有你需要涵盖的每门课的笔记。《柯林斯英汉双解大词典》

3·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》

4·She did not have enough nurses to cover for those who were sick.

她没有足够的护士来代替她们生病的同事的工作。《柯林斯英汉双解大词典》

5·I didn't include this in my draft report but I had to design the cover for the DVD as well .

我没有把这个包括在我的报告草案里，但是我还得设计 DVD 的封面。

6·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》

7·Why would she cover for someone who was trying to kill her?

她为何要包庇那个试图要杀死她的人呢？《柯林斯英汉双解大词典》

8·In this area there is snow cover for six months of the year.

这个地区一年中有六个月被积雪覆盖。《牛津词典》

9·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》

10·They could not provide adequate air cover for ground operations.

他们无法为地面作战行动提供足够的空中掩护。《柯林斯英汉双解大词典》

代替

1·She did not have enough nurses to cover for those who were sick.

她没有足够的护士来代替她们生病的同事的工作。《柯林斯英汉双解大词典》

2·There was somebody able to cover for them in their absence.

在他们缺席期间，有人能代替他们。

3·Go on and take your coffee break. I'll cover for you until you return.

你去喝咖啡吧，你回来前我会代替你。

4·I'll cover for Jane while she's on holiday.

简休假时我代替她工作。

5·I couldn't find anybody to cover for me.

我找不到人来代替我。