1.Attaché case 公文包

例句：He was well dressed and carried a smart leather attaché case.

他衣着光鲜，拎着一个漂亮的真皮公文包。

2.be in love with 喜欢，恋爱

例句：He shall not be in love with me, if I can prevent it.

只要我避免得了，我决不会叫他跟我恋爱。

3.clean sth/down 彻底打扫；使…彻底干净

例句：All the equipment should be cleaned down regularly.

所有设备都应该定期彻底打扫。

clean up/clean sth/up 打扫(或清除)干净

He always expected other people to clean up after him (= when he had made the place dirty or untidy).

他总是指望别人来打扫他弄脏了的地方。

Who's going to clean up this mess?

这么又脏又乱的,谁来清理？

to clean up beaches after an oil spillage

清理石油泄漏后被污染的海滩

4.used to sth/to doing sth 习惯于；适应

例句：I'm not used to eating so much at lunchtime.

我不习惯午饭吃那么多。

I found the job tiring at first but I soon got used to it.

起初我觉得这份工作很累人,但很快就习惯了。

5.wonder about 想知道；想弄明白；琢磨

I wonder who she is.

我在想她到底是谁。

I was just beginning to wonder where you were.

我刚才正琢磨你上哪儿了呢。

'Why do you want to know?' 'No particular reason. I was just wondering.'

"你为什么想要知道？" "没有特殊原因。我就是想搞清楚。"

We were wondering about next April for the wedding.

我们寻思着下个四月举行婚礼可好。

'What should I do now?' she wondered.

"我现在该怎么办呢？"她自忖道。