单词：deltiologist
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单词解析速记
The farmer in the del 山谷里住着一个农夫 中英歌词： The farmer in the dell 农夫在小溪谷 The farmer in the dell 农夫在小溪谷 Hi-ho, the derry-o 嗨噢 The farmer in the dell 农夫在小溪谷 The farmer takes a wife 农夫了娶
优美儿童英语歌曲
This is Scientific American's 60-Second Science, I am Karen Hopkin. This'll just take a minute. Biologists, traditionally track migrations by tagging animals with devices that allow their movements to be monitored. But Homo sapiens can't be fitted wi
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By Greg Flakus Austin, Texas 04 August 2006 watch Austin Bat Colony report A bat in the Austin, Texas colony In many parts of the world, bats rank with snakes, spiders, scorpions and other members of the animal kingdom that are regarded as creepy or
2006年VOA标准英语（八月）
By Carol Pearson Washington, DC 08 November 2006 watch Heart Stent report Heart stents are lifesaving medical devices that help prevent heart attacks. Most of these stents are coated with various drugs, but mounting data suggest drug-coated stents c
2006年VOA标准英语（十一月)