单词：standard humic type
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Electric Fish 发电鱼 One way that Harold Zakon and his team find fish to study is to put electrical detectors into the bottom of murky streams in Venezuela. This works because certain fish emit pulses of electricity. Discover electric fish -- on tod
(科普英语)Earth and Sky
歌词： I wanna make your heart beat I love it when it beats for me, yeah I wanna make your heart beat I love it when it beats for me, yeah I wanna raise pulses La chica with the most-est Not in the mood for the average Josephs Coming unglued, baby
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I will know that only those with inferior ability can always be at their best ,and I am not inferior.There will be days when I must IN THE WORLD constantly struggle against forces which would tear me down,Those such sa despair and sadness are simple
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By Ravi Khanna Washington, DC 07 February 2008 The American Folklife Center of the Library of Congress in Washington featured Indo-Caribbean drumming and dancing at a recent performance. The center has been featuring traditional ethnic and regional m
VOA常速英语2008年（二月）
He was sure that when a supernova exploded, it left behind a kernel so dense that a cupful would be as heavy as a mountain, he called it a neutron star, it seems so preposterous that Z's ideas were dismissed, until that is a new way of scouring the h
探索与发现2015年
美帝夫妻档 Karmin 新单曲《Pulses》！如果你对 Karmin 的印象还停留在《Acapella》，那么这次的《Pulses》可就要你大吃一惊了。巨肺姐 Amy Heidemann 不仅能飙高音，玩儿起说唱时的强大气场也绝对力
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