雨水把水渠又灌满了。
他们使用防雨水泥以防止雨水从屋顶的排水渠里渗透出来。
They used waterproof cement to prevent water from seeping through the roof of the runnel .
屋顶雨水径流的地区可能需要排水渠或砾石坑保护植物和结构。
Roof rain runoff areas may require a drain or gravel sump to protect plants and structures.
应用推荐