1. The drains are bunged up with dead leaves. 排水沟被枯树叶堵住了。
2. Tony built his own house and laid his own drains. 托尼盖了自己的房子,铺设了自己的排水管道。
3. It depends on how soon I can finish the drains at the office building. 这取决于我多久能完成办公楼的排水管工作。
4. The arch was used by the early cultures of the Mediterranean area chiefly for underground drains, but it was the Romans who first developed and used the arch extensively in aboveground structures. 在地中海区域的早期文明中,拱形结构主要被运用在地下排水管上,但在地上建筑中首先发展并广泛使用拱门的是罗马人。