The Antarctic Ice Sheet waxed and waned, and global sea level rose and fell.

随着南极冰盖冰冻和消融，全球海平面也在降低和升高。

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The Antarctic Ice Sheet waxed and waned, and global sea level rose and fell.

随着南极冰盖冰冻和消融，全球海平面也在降低和升高。

youdao