to make a person or place clean and tidy

We'll go out as soon as I've cleaned up the kitchen. 我一收拾完厨房我们就出去。

I need to clean up (= clean myself or the place where I am) before we go out. 我们出去之前我得先收拾收拾。

Clean yourself up a bit before dinner. 吃饭前先把你自己弄干净点儿。

to win a lot of money

We cleaned up at the poker table last night. 我们昨晚在牌桌上赢了一大把。

to stop illegal or dishonest activity in a place or organization

We need a mayor who is tough enough to clean up this town. 我们需要一位强硬的市长来整顿这个城市。

to stop or limit the violence, sex, or bad behaviour shown or contained in programmes or books, magazines, etc., to make them more acceptable

Some people think that television should be cleaned up. 有些人认为应该净化电视节目。