clear out和clean up的区别：中文含义不同、用法不同。clear out含义为“清理”、“滚开”、“整理房间”，是及物动词；clean up中文含义为“清理”、“把…弄干净”、“肃清”、“收拾干净”，是指对某物进行整理和打扫，使其变得更加干净。

clear out意为清理;滚开;整理（容器、房间等）。

例句：I'll clear out that closet and then you can hang your clothes there.

我把那个小衣橱清理出来，你可以把衣服挂在那里。

He finally told his mother-in-law to clear out and let them live their own lives.

最后他叫岳母赶紧离开，让他们独自生活。

She needed a clear head to carry out her instructions.

她需要一个头脑清醒的人来执行自己的指令。

The police are after you, you would better clear out!

警察在追踪你，你最好溜吧！

I told them to clear out because they were making so much noise.

“他们太闹了，我让他们离开”，说这句话的人很可能是一位房东。

The effort to clear out those who remain hidden must go on.

有些没有清查出来的，还要继续清查。

We must resolutely clear out all the bad elements in our society.

我们必须坚决清除社会中的坏分子。

Clearing out your place helps clear out your mind and make room for the new.

清理房间能帮助你清空大脑，为新的事物腾出空间。

I think they'd rather clear out the stock than keep them in the warehouse.

我相信他们宁愿把仓底货卖光，也不想把货品搁在货仓里。

clean up意为清理;清扫;把…弄干净;清除（污染物）;（警方或当局）肃清;整肃（犯罪、腐败等）;（尤指在干脏活儿后）收拾干净;赚大钱。

例句：And muggins here had to clean up all the mess.

而我这个傻瓜现在不得不清理这个烂摊子。

The new mayor is determined to clean up the city.

新上任的市长决心要整治好这座城市。

The government has pledged to clean up industrial emissions.

政府已保证要清除工业排放物。

The mayor outlined his plan to clean up the town's image

市长概述了他整顿市容的计划。

She used to mess up the floor and I had to clean up after her.

她过去常常把地板弄得很脏乱，而我不得不为她清理干净。

I never had to clean up after him. If anything, he did most of the cleaning.

我从来不用跟在他后面打扫卫生。恰恰相反，他包揽了大部分的清洁工作。

Dad cooks when Mum is busy, he makes me clean up my messy room

妈妈忙的时候爸爸做饭，他还让我清理我乱糟糟的房间。