wedge block

例句：

1. 1.The engineer used a wedge block to remove the jammed screw.
   工程师使用楔形块来松开卡住的螺丝。
2. 2.The wedge block helped to stabilize the structure during construction.
   楔形块在施工期间帮助稳定了结构。
3. 3. The wedge block was designed to prevent water from seeping into the foundation.
   楔形块设计用来防止水分渗入地基。