| 单词 | ice sheet |
| 释义 | ice sheet ice sheet n: (layer of ice) SC 冰层 bīng céng SC 冰原 bīng céng，bīng yuán SC 冰原 bīng céng，bīng yuán At one time an ice sheet covered most of the Northern part of the North American continent, now ice sheets only exist in Greenland and Antarctica. |
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