tweel blocks

例句：

1. 1.The carpenter used a tweel block to level the floor.
   木匠用楔形块来平整地板。
2. 2.The wedge block was used to drive the bolt home securely.
   楔形块被用来将螺栓牢固地固定住。
3. 3. The carpenter needed a tweel block to make the joint stronger.
   木匠需要楔形块来使接合处更坚固。