单词：native sulfate of barium
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说一口流利的英语，从简单的单词开始。 听听，读读，背背，今天你的词汇量又增加了5个。 单词/词义 中英例句 单词听读 facet [ 5fAsit ] The skill with which
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More coming up on Day to Day from NPR News. From NPR News, it's Day to Day. Americans are loath to vote for higher taxes, except when it comes to smoking. On election days, states like Arizona and South Dakota voted for increased taxes on the sales o
2006年NPR美国国家公共电台
Protamine sulfate is a drug that reverses the anticoagulant effects of liver compounds such as heparin. Protamine is extracted from the sperm of salmon and other species of fish, and then made into a protamine sulfate injection which is a necessary d
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A man who was born in the state of Yan grew up in the state of Chu．At his old age he decided to return to the state of Yan．On his way he passed the state of Jin．His fellow travellers played a trick on him．They pointed at a city of the state o
趣味英语
We keep pumping carbon dioxide into the atmosphere and the earth keeps warming. Climate scientists have predicted that the consequences of unchecked warming could result in everything from catastrophic flooding to larger and more deadly hurricanes. S
英语时差8，16
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