"If we had a clean energy economy powered by wind and solar and tidal power we probably would not be here having this discussion today."

VOA: standard.2010.07.31

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

She says that the goods and services provided by nature - like clean air, rain or fertile soils - should not be taken for granted.

VOA: standard.2010.02.24

Again, this probably should be cleaned up and in a couple of weeks we'll spend a day or half period trying, to clean it up and make it somewhat more precise.

以上内容还有待梳理,未来两周我们将会花上一天半左右的时间,试着梳理这些内容,使其更加精确

耶鲁公开课 - 死亡课程节选

it has avoided bankruptcy so far." It all depends,says Faulkner, on whether the damaged well can be fixed, the spill stopped permanently and how well clean-up operations go.

VOA: standard.2010.07.27

"The message is if you are not going to be clean and sincere, if you are going to engage in criminal activity, if you are going to cooperate with the Taliban, we will hold you accountable."

VOA: standard.2010.05.28

adaptations,coastal protections Among a host of necessary need to be built, crops threatened by drought need to be modified, health care needs to be stepped up, and new clean energy solutions need to put in place.

VOA: standard.2009.12.11