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71. | under-river pipeline crossing |
| 河床下管线穿越 |
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72. | We have to cross the marsh . |
| 我们必须穿越沼泽地。 |
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73. | We had to cross the marshes. |
| 我们须穿越沼泽地. |
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74. | Colorado River through the Grand Canyon. |
| 科罗拉多河穿越大峡谷。 |
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75. | They tramped through the woods all day. |
| 他们整天穿越树林。 |
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76. | Oblique crossing |
| 斜向交叉穿越 |
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77. | The road round the lake goes through six tunnels . |
| 环湖公路穿越六个隧道。 |
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78. | Use the subway to cross the road. |
| 请走地下通道穿越马路。 |
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79. | pretimed pedestrian crossing signal |
| 定时自动穿越号志 |
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80. | uncased crossing |
| 不加套管的穿越 |
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