音标:[,tetrә'θaiә,neit] ;
连四硫酸盐
n. A salt of tetrathionic acid.

This is Scientific American Sixty Seconds Science, I'm Sophie Bushwick, got a minute? When Mexican tetra fish moved into darker caves long ago, they evolved to deal with the dark by becoming albino and going blind. A new research shows that the chang

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Nate:I dont like my baby picture. 奈特:我不喜欢我的婴儿照。 Eve:Why not? 伊芙:为什么不喜欢? Nate:I just dont. 奈特:我就是不喜欢。 Eva:But they are cute. Look! 伊芙:但是他们很可爱耶。你看!

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T Tanshinone IIA 丹参酮IIA Tanshinone I 丹参酮I Tanshinone IIB 丹参酮IIB Taraxasterol 蒲公英甾醇 Taraxerol 蒲公英赛醇 Tauro ursodesoxy cholic acid 牛磺熊去氧胆酸 Taxifolin 花旗

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Eminem 联手 Fun. 主唱 Nate Ruess 单曲《Headlights》MV震撼生猛出炉!这支MV由著名导演斯派克李(Spike Lee)掌镜,《Headlights》回到了当年8英里的取景地底特律拍摄,姆爷典型20012005年说唱风格彻底回归

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10 Getting The Lead Out 第十章 把铅撵出去 In the late 1940s, a graduate student at the University of Chicago named Clair Patterson (who was, first name notwithstanding, an Iowa farm boy by origin) was using a new method of lead isotope measur

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Nelly: Look at that couple over there. What theyre doing is indecent! Sadat: Where? Oh, you mean those two people hugging and kissing? Thats not indecent. Nelly: Theyre not just hugging and kissing. That girl is sitting on her boyfriends lap and they

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