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11. | The pipe connects with the sewer. |
| 这根管子连接下水道。 |
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12. | Sewerage Planning Division |
| 下水道计画课 |
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13. | storm water outfall |
| 下水道渠口 |
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14. | Mud choked the drainpipe. |
| 淤泥堵塞了下水道. |
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15. | Sewerage Construction Division |
| 下水道建设课 |
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16. | function chamber |
| 下水道汇流井 |
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17. | The heavy rainfall backed up the sewers. |
| 大雨堵塞下水道。 |
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18. | sewerage (system) |
| 下水道系统; 污水排水工程 |
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19. | The drains are choked with dead leaves. |
| 下水道被枯叶堵住. |
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20. | sanitary sewers |
| 生活污水管道; 下水道 |
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