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41. | The wind whirled across the steppes. |
| 风儿回旋过台阶 |
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42. | Mind the step outside the door. |
| 小心门外的台阶。 |
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43. | sequential steps |
| 顺序阶梯|顺序台阶 |
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44. | Shusheng sat on the steps. |
| 水生坐在台阶上说: |
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45. | overhand planing |
| 倒台阶式刨削 |
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46. | spread varnish on the steps. |
| 在台阶上涂漆 |
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47. | heading-and-bench method |
| 正台阶采矿法 |
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48. | bench mining method |
| 台阶式采煤法 |
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49. | The minister went up the steps. |
| 牧师一步步走上台阶。 |
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50. | There are 150 steps to the top of the tower. |
| 到塔顶有150级台阶. |
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