dewatering culvert

例句：

1. 1. The construction crew had to dewater the foundation before starting the excavation.
   施工队在开始挖掘之前，必须先排干地基的水分。
2. 2.The engineer designed a unique drainage culvert to prevent water from seeping into the underground passages.
   工程师设计了一种特殊的排水沟，以防止水渗透到地下通道中。
3. 3. The new road was built with drainage culverts to ensure proper water flow and prevent flooding.
   新的道路建设采用了排水沟，以确保水流畅通并防止洪水。