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Marine animals and plants take advantage of the density of water.
海生动植物利用了海水的密度。
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Ice floats on water because the density is less than that of water.
冰浮于水，因为其密度小于水的密度。
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Ice floats on water because the density is less than that of water.
冰浮于水，因为其密度小于水的密度。
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