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一般来说,当水里有足够的向上的推力来支撑重量时,东西就会浮起来。南美洲有一种蜥蜴在逃离猎物的追捕时就能够在水面上行走。几位富有想象力的青年人受到蜥蜴的启发也想能自如地在水面上行走,他们能成功吗?让我们拭目以待吧。