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66天:【小牛顿-好奇小子】为什么海水是咸的
Episode 34

66天:【小牛顿-好奇小子】为什么海水是咸的

【小牛顿】科学开讲咯(6-12岁) · 小牛顿

February 12, 20162m 10s

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Show Notes

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到海边玩水,游泳时不小心喝到海水,怎么海水跟我们一般喝的水不一样,喝起来咸咸的。