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冰山好像在海水中静静地漂移,其实它们并不安静,它们在不停地唱着悦耳的歌。这是科学家通过地震仪测到的。
The icebergs seem to drift quietly in the sea, but in fact they are not quiet, they are constantly singing sweet songs. This is what scientists have measured with seismographs.