The forward movement, the melting at the base of the glacier where it meets the ocean, and waves and tidal action cause blocks of ice to break off and float out to sea.

冰川的向前移动，其底部与海洋接触处的融化，还有波浪和潮汐运动，导致冰块断裂，漂浮到海上。

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The radar sends radio wave pulses into the ice sheet, and the waves bounce off buried features, informing researchers about the characteristics of the snow and ice layers.

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Clearly buoyed by their first-period comeback, the Penguins raced up ice time after time in waves.

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The frozen lake not level but mounded along the shore, as if the waves had turned to ice in the act of falling.

NEWYORKER: Amundsen