dragscraper

例句：

1. 1. The truck's trailer scraper is designed toremove snow from the road.
   卡车的拖车刮刀设计用来清除道路上的雪。
2. 2.The trailer blade was so sharp that itcould cut through even the thickest ice.
   拖车的刀片非常锋利，能够切割最厚的冰层。
3. 3.The trailer scraper was usedto clear the snow from the drivewaybefore the snow plow arrived.
   拖车刮刀被用来在铲雪机到来之前清理车道上的雪。