how often

He was shocked at how often she used the F-word.

她常常使用粗俗的骂人话，这使他感到震惊。

Her hair keeps sticking up no matter how often she combs it.

不管她怎么勤梳头,她的头发总是竖着.

No matter how often they turn up, their welcome never wears out.

不管他们多久露面一次，都永远那么受欢迎。

How often do you brush your teeth?

你多久刷一次牙？

How often have I tried to drill into you that you must ask permission first?

我不是多次叮嘱过你要首先请求允许 吗 ?

No matter how often they were urged, they could not bring themselves to join in.

就算别人说破了嘴皮，他们就是不加入。

I don't know how often I heard the same awful jokes.

这种千篇一律的烂笑话我不知道听过多少回了。

The two occasions she tripped up tell you nothing about how often she got away with it.

你看到了她的两次失手，却根本不知道有多少次她都得逞了。

Regardless of how often I correct him, he always makes the same mistake.

不管我怎样经常告诫他, 他总是犯同样的错误.

How often does the train run?

这火车多久一班?

How often are letters delivered here?

这儿一天送几次信件?

How often do you shampoo your hair?

你多久用洗发剂洗一次头?

How often do you give your phone number out?

你经常把自己的电话告诉别人吗？

How often do you go to the theatre ?

你多久看一次戏？

So , Jack, how often do you clean these windows?

杰克, 你经常擦洗这些窗户 吗 ?