She knows what a tidy woman mother is, and how clean she keeps the cottage.

她知道妈妈爱干净，总把小屋打扫得干干净净的。

youdao

But some physicians wonder how clean the procedure can actually be.

但是，一些内科医生仍对该手术方法的实际清洁程度持怀疑态度。

youdao

When he served them their indictments on October 20th 1945, going from cell to cell, he noticed how clean the hands were that took the papers from him.

当他1945年10月20日向各个牢房的战犯派送起诉书的时候，他注意到了接收文件的手竟是那样干净整洁。

youdao

"There are different ways of evaluating how well stormwater practices clean water things like ponds and wetlands and permeable pavement."

VOA: standard.2010.08.04

Within our own rooms, it doesn't really matter how clean they are,

我们自己屋干不干净其实并不重要，

有趣的室友们 - SpeakingMax英语口语达人

And the way it manifests itself, as you know from just how people talk, is you're compulsive, you're clean, you're stingy.

这种人格表现为，强迫，有洁癖和吝啬，这些都可从人们谈话方式看出。

耶鲁公开课 - 心理学导论课程节选

But the best testament to how clean and green Copenhagen really is can be found in the heart of the city.

BBC: Living green in Copenhagen

Many analyses have shown how clean energy legislation will create 1.7 million jobs and opportunities for low-income families, including lower energy bills.

FORBES: Digging Into The Senate Climate Bill

How clean is that?

BBC: Doctors