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| 1. | It took up the whole afternoon to pick up the frozen ground. |
| 我们花了一下午的时间刨冰冻的地面。 |
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| 2. | frozen ground of China |
| 中国的冻土 |
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| 3. | alpine frozen ground |
| 高山型冻土 |
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| 4. | thaw settlement and consolidation of frozen ground |
| 冻土融沉 |
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| 5. | perennially frozen ground |
| 长期冻土 |
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| 6. | seasonally frozen ground |
| 季节性冻土 |
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| 7. | rheology of frozen ground |
| 冻土流变 |
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| 8. | frozen ground landform |
| 冻土地貌 |
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| 9. | The frozen ground was difficult to dig. |
| 冻土不好挖。 |
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| 10. | dry frozen ground |
| 寒土 |
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