单词：polyvinyl chloride carpet
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Recycling Plastics When plastic containers are recycled, they are first cleaned, then ground into tiny pellets and put into a flotation tank. This separates out the various plastic resins from other waste material. Once they are separated out, the pl
英语时差8，16
我们今天要学的习惯用语都包括这样一个关键词汇，call。 Call这个词最主要的意思是大声呼唤，但是大家一定知道call 用在不同的习惯用语里意思也会发生相应的变化。例如在今天要学的第一个
美国习惯用语
Every winter some twenty million tons of salt are dumped on America's road.That sodium chloride melts the ice, so it prevents its formatin, helping to prevent accidents. But road salt has its downside. This is not very economical because salt is main
2016年Scientific American(一)月
今天我们要学的词是red carpet。 Red carpet, 红地毯，意思是隆重地欢迎或接待。阿富汗总统卡尔扎伊星期一访问美国。媒体报道说， Karzai will get the red carpet treatment during his four-day visit, 卡尔扎伊在
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This week on Why Tell Me Why, we are finding out why the oceans are so salty. So the oceans are salty because the oceans have been around, lets say, for over five hundred million years. And over the course of time what we found out is that weve alway
自然百科2009年
First off, I'll mention that at the bottom of the sea there exist veins of zinc, iron, silver, and gold whose mining would quite certainly be feasible. 首先，我对您说，海底有锌、铁、银、金等矿藏，开发并不是不可能的事。
《海底两万里》中英双语有声读物