For more than thirty years, the Aprovecho Research Center has been designing cleaner, low-cost cooking stoves for the developing world.

VOA: special.2010.02.01

I've already taken your shirt to the cleaner's.

我已经把你的衬衫拿去洗衣店了。

I've already 课堂 - SpeakingMax英语口语达人

Then here's the favorite of all time, vacu-pants, attached via the hose to your vacuum cleaner.

这是最受喜欢的,真空裤法,需要与真空吸尘器的管子相连

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Many people think the search for cleaner energy leads only to renewable resources like sun,wind and water.

VOA: special.2009.10.23

So I don't know don't, John, I would argue if I'd written this better, I would have had a method that returned the x- and the y- value, and it would be cleaner to go after it that way.

我会去辩论这么写是不是更好，我也可以写一个，返回x坐标和y坐标的方法,这么做可能会更清楚一点，这是很棒的缩写，好。

麻省理工公开课 - 计算机科学及编程导论课程节选

Lawmakers in Washington seemed to have understood the public demand for a cleaner environment.

VOA: special.2010.04.21

The program known as Master Meter provided these families with ease of access, cleaner water and lower costs.

VOA: standard.2010.08.04

U.S.Special Envoy on Afghanistan Richard Holbrooke believes the second round of voting will be cleaner than the first.

VOA: standard.2009.10.28

The more we get our lakes cleaner we leave them secure for the future generations the future of the houseboats is good,".

VOA: standard.2009.12.16

Trains are fuel efficient, they relieve traffic and airport congestion and they also reduce our dependence on foreign oil, making passenger trains the safer,cleaner, greener transportation option."

VOA: standard.2010.02.15

Kai Eide said a cleaner election and a credible government will go a long way toward closing what he called the "gap" between the Afghan people and officials in Kabul.

VOA: standard.2009.10.23