composite earth dam

例句：

1. 1. The engineers designed a compositeearth dam to store water for floodcontrol.
   工程师们设计了一个复合土坝，用于储存水以防洪。
2. 2. The construction ofthe composite earth dam was completed aheadof schedule.
   复合土坝的建设提前完成。
3. 3. Thecomposite earth dam is an innovative solutionto the problem of flood control in thisregion.
   复合土坝是该地区解决洪水控制问题的创新解决方案。