楔状骨的

例句：

1. 1. The new policy spurred the company to make significant changes.
   新政策促使公司做出重大改变。
2. 2. Her success was a great spur for others to follow her example.
   她的成功是其他人效仿的极大激励。
3. 3. The teacher's words were a powerful spur to action.
   老师的话是一个强有力的行动激励。