激励者

例句：

1. 1. The teacher is an inspiring speaker who motivates students to work hard.
   这位老师是一位鼓舞人心的演讲者，激励学生努力学习。
2. 2. The manager is a great motivator for his team, always encouraging them to achieve their goals.
   这位经理是团队的杰出激励者，总是鼓励他们实现目标。
3. 3. The motivational speaker's speeches are often used as examples of how to inspire others.
   这位激励性演讲者的演讲经常被用作激励他人的范例。