The area has good natural drainage.

这个地区有良好的天然排水系统。

《牛津词典》

They have gaps in them where they cross little natural drainage channels and the lines themselves are not perfectly filled in, with lots of little streaks and uneven coverage.

他说：“网格中有一些间隙，在这些间隙里交叉着很小的自然排水渠道，而这些线条本身却没有完全被充填，有着许多小的条纹和不均匀的覆盖范围。”

youdao

Building placement and architecture should be "site sensitive," ie, it should take natural slope and drainage into consideration.

建筑布局和结构应该是“敏感地点”，即应考虑到自然坡度和排水。

youdao

The project is a partnership of the Environment Agency, Huntingdonshire District Council, Middle Level Commissioners, which is a group responsible for land drainage, Natural England and the Wildlife Trust.

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