Why does ice float in water?

冰为什么浮在水面？

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Chunks of sea ice float in the water between the smooth iceberg and the coast.

在大冰山和海岸之间的海水中漂浮着很多浮冰。

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On a very cold day, during a very cold winter, sheets of ice float on the Vistula River and out toward the Baltic Sea.

在寒冷的冬季里，有一天，天气非常的冷，维斯瓦河上漂浮着大片大片的浮冰，缓缓向着波罗的海漂去。

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The indirect effect is that it can "pre-condition" the ice shelves that float at the edges of the ice sheet.

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