No one knows exactly how clean a hand dryer is, and there is the possibility that it might be blowing hot, contaminated air onto your hands instead of hot, clean air.

没有人准确的知道如何清洁手干燥机，并有可能，它可能被污染的空气吹入的热，到你的手中，而不是热空气清洁。

youdao

Priority topics to be addressed willinclude energy efficiency in buildings, clean coal (including carboncapture and sequestration), and clean vehicles.

优先研究课题将包括建筑能效、清洁煤(包括碳捕集与封存)及清洁汽车。

youdao

Then will I sprinkle clean water upon you, and ye shall be clean: from all your filthiness, and from all your idols, will I cleanse you.

我必用清水洒在你们身上，你们就洁净了。 我要洁净你们，使你们脱离一切的污秽，弃掉一切的偶像。

youdao

The wool must be clean. Leave it overnight in water and liquid soap.

VOA: special.2010.08.02

And then finally, they would take their bath and out they would come and be clean.

然后才进入浴池洗澡,洗完澡出来,他们的身体就干净了

耶鲁公开课 - 古希腊历史简介课程节选

So, you say to your roommate because you want the house to be clean and things to change.

为了屋子变得整洁，情况有所改善，你可以跟你的室友说，

I'm afraid of 课堂 - SpeakingMax英语口语达人

For human populations and ecosystems to thrive, that water must be clean, it must stay clean and, most importantly, it must be accessible to all.

UNESCO: World Water Day 22 March 2010: Clean Water for a Healthy World

That yard in Newmarket remains on lock down until every horse can be demonstrated to be clean and steroid free.

CNN: Classic redemption for Godolphin

Requirements for shelter residents to join are simple -- they must live in an affiliated facility and be clean and sober for 30 days.

CNN: Runner gets homeless on right track