吗喃,3-羟-N-甲吗啡烷

英语动画:新东方爵以词雄词汇-刘一男 77

[全屏观看] 点击右键- 另存为可保存这个Flash影片第五段四级词汇超级变态难词记忆串讲（五） masc uline男性，男子气概的- mousemuscle-肌肉masculine-男子汉 orph an孤儿-orph=off-出去 in f ant-婴儿 par

发表于:2018-11-29 / 阅读(188) / 评论(0)

《新东方 [爵以词雄] 词汇》刘一男

SSS 2011-04-11

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Landfills produce methanewhich can be valuable as an energy source. But scientists haven't known why landfills make so much methane. The solid waste in

发表于:2019-01-08 / 阅读(107) / 评论(0)

Scientific American(四)月

VOA标准英语,Drug,US,Author

Synthetic Drug Problematic for US Authorities Augusta County, Virginia, is a rural county in the Blue Ridge Mountains, two and a half hours southwest of Washington. It has a big problem. Sheriff Randy Fisher says Augusta County was once known as the

发表于:2019-01-13 / 阅读(114) / 评论(0)

VOA标准英语2012年(六月)

美国国家公共电台 NPR In California, Salinan Indians Are Trying To Reclaim Their Culture And Land

ROBERT SIEGEL, HOST: The lives of Native Americans are still shaped by decisions made by the federal government in the 19th century. In California, the federal government never officially recognized around 40 tribes, a decision that left them without

发表于:2019-01-16 / 阅读(36) / 评论(0)

2017年NPR美国国家公共电台12月

VOA标准英语2010年-Meth Still Grips, But Doesn't Strangle

Raw anti-drug campaign awakens state Ted Landphair | Missoula, Montana 04 February 2010 Photo: Montana Meth Project Adults across Montana were frightened by what they were seeing. Some hardly recognized their meth-addled teenagers. Related Links Mont

发表于:2019-02-02 / 阅读(55) / 评论(0)

VOA标准英语2010年(二月)

环球英语 — 181：Crystal Meth: A Drug Problem

Voice 1 Hello. Im Ruby Jones. Voice 2 And Im Marina Santee. Welcome to Spotlight. This programme uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. A small candle burns. It re

发表于:2019-02-21 / 阅读(68) / 评论(0)

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