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| 51. | The wind whirled across the steppes. |
| 风儿回旋过台阶 |
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| 52. | The minister went up the steps. |
| 牧师一步步走上台阶。 |
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| 53. | Mind the step outside the door. |
| 小心门外的台阶。 |
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| 54. | sequential steps |
| 顺序阶梯|顺序台阶 |
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| 55. | Shusheng sat on the steps. |
| 水生坐在台阶上说： |
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| 56. | overhand planing |
| 倒台阶式刨削 |
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| 57. | spread varnish on the steps. |
| 在台阶上涂漆 |
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| 58. | step profile of invasion |
| 台阶型侵入剖面 |
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| 59. | bench mining method |
| 台阶式采煤法 |
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| 60. | heading-and-bench method |
| 正台阶采矿法 |
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