drag wedge

例句：

1. 1. The car was so heavy that itcouldn't be moved without a dragwedge.
   这辆车太重了，没有拖曳楔子就无法移动。
2. 2. They used adrag wedge to lift the heavy boxoff the ground.
   他们使用拖曳楔子将重箱子从地面上抬起来。
3. 3. Theconstruction crew had to use a drag wedge to move the large beam across theriver.
   建筑工人不得不使用拖曳楔子将大梁从河这边运到那边。