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A rich fishery in Southeast Asia is at risk because of overfishing, pollution and hydroelectric dams. The Tonle Sap is a freshwater lake in the middle of Cambodia. The lake shrinks and expands by thousands of kilometers, depending on the season. The
2017年VOA慢速英语(十一)月
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. If youve ever popped open a jar of the pickled fish, you know that herring like to stick together. Actually, its something they do naturally, even before
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硅谷大佬给年轻人的几条人生经验 Sam Altman 是silicon valley 硅谷知名创业孵化器YC，也就是Y Combinator 的现任CEO， 知名财经杂志 Fast Company 曾评价他为 the world's most powerful start-up incubator （世界上最
早安英文
硅谷大佬给年轻人的几条人生经验 Sam Altman 是silicon valley 硅谷知名创业孵化器YC，也就是Y Combinator 的现任CEO， 知名财经杂志 Fast Company 曾评价他为 the world's most powerful start-up incubator （世界上最
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(man) Today's lecture will center on prehistoric people of the Nevada desert. Now, most of these prehistoric desert people moved across the countryside throughout the year. You might think that they were wandering aimlessly --- far from it! They act
托福听力短文
Northeast Arctic cod, usually found in the Barents Seas, have been traveling up to the archipelago of Svalbard for the past three years. Off the coast of Longyearbyen, a Norwegian city located just 1,300 kilometers from the North Pole, scientists are
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