trailer dredger

例句：

1. 1. The trailer dredger was usedto remove the sand from the beach.
   拖车式疏浚船被用来从海滩上移除沙子。
2. 2. The engineers werebusy inspecting the trailer dredgerbefore it left the dock.
   工程师们忙于在拖车式疏浚船离开码头前进行检查。
3. 3. The trailer dredgerwas used to clean up the storm-swept coastal area.
   拖车式疏浚船被用来清理风暴过后的沿海区域。