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A technology company has made a new device to help clean the air in our home. The company is called Dyson. It has just launched an air purifier called the Pure Cool Link. A spokesperson said the purifier captures up to 99.95 per cent of pollutants in
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Types of Students in School Cheech: Is this your old yearbook? Boo: Yeah, I found it while cleaning out my closet. Cheech: Look at your picture! You look like you were an honor roll student. Boo: Dont be fooled. I was just an average student, not the
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DEVELOPMENT REPORT - Aid Group Designs System to Make Dirty Water Safe to Drink By Jill Moss Broadcast: Monday, October 17, 2005 This is Steve Ember with the VOA Special English Development Report. Ea
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Broadcast: May 5, 2003 By Jill Moss This is the VOA Special English Development Report. Each year more than two-million people die from diseases caused by drinking dirty water. That is the estimate of
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China's General Administration of Quality Supervision, Inspection and Quarantine has pledged to keep 92 percent of the sample product quality above the state standards while reducing accidents of elevators and other mechanical devices. Improving the
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介绍: smog 雾霾 mask 口罩、面膜 A mask is an object normally worn on the face, typically for protection, disguise（伪装）, performance, or entertainment. gas mask 防毒面 oxygen mask 氧气面罩 air purifier /?pj?r?fa??r/ 空气净化器
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