An underground drain.
| 单词 | θ52389 |
| 释义 | the world > food and drink > farming > cultivation or tillage > preparation of land or soil > ditching or drainage > ditch [verb (transitive)] > underdraining (3) under-drain1805 An underground drain. underdrain1805 transitive. To drain by means of underground trenches. under-drainage1810 Underground drainage. |
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