51. | The pond is coated with thin ice . |
| 池塘上结了一层薄冰。
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52. | The old snow and mud had compacted and cemented into dirty ice . |
| 积雪和烂泥压在一起结成了泥冰。
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53. | Don't go skating today— there are dangerous cracks in the ice . |
| 今天别去溜冰,冰上有危险的裂缝。
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54. | It was crazy of you to go skating on such thin ice . |
| 到这样薄的冰上去溜冰,你真是疯了。
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55. | The doors and windows were blockaded with ice and snow. |
| 门窗被冰雪封住了。
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56. | shave off some ice from a large block. |
| 从大冰块上刨下一些冰。
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57. | The ice is not strong enough to skate upon. |
| 这冰层不够结实,不能在上面滑冰。
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58. | She slid along the ice . |
| 她在冰上滑行。
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59. | The car went into a slide on the ice . |
| 汽车开始在冰上滑行。
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60. | A slip on the ice can cause a nasty injury. |
| 在冰上滑跤有可能造成重伤。
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