单词：soot-laden
单词：soot-laden 相关文章
From VOA Learning English, this is the Health Lifestyle report. From Asia to Europe to North America, poor air quality is making people sick and, in some cases, killing them at an early age. Air pollution causes six million premature deaths every yea
2017年VOA慢速英语(四)月
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. There's a huge, gunky brown cloud that lingers over south Asia and the Indian Ocean each winter. Its been known to cause respiratory diseases and even
Scientific American(一)月
The male usually leads. If the female is sufficiently impressed, the pair seal their relationship with a vocal duet . King Penguin rookeries are very busy places. Every morning at about 6:00, the adul
冰雪童话
President Obama is spending the night in Riyadh, Saudi Arabia after a day of meeting there with King Abdullah. Tomorrow, the president heads to Cairo for the most important speech of his trip. NPR's Don Gonyea reports. The speech will be delivered b
2009年NPR美国国家公共电台6月
Study: Reducing Soot is Fastest Way to Slow Climate Change A new study finds that reducing carbon-rich soot emissions could be the fastest and most economical way to slow climate change and protect human health. Those dust-like particles released in
VOA标准英语2011年(九月)
Anirudh Sharma doesn't just want to pull harmful carbon from the air. He wants to offer a cheaper alternative to the exorbitant costs of ordinary printer ink. 阿尼鲁德夏尔马不仅想除掉空气中的有害炭物质，还希望创造一种更便
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