激励因素的英文：
motivator
n. 动力，促进因素
Conquest is the motive.
战利品就是动机。
What motivated you to do such a thing?
引起你做这样的事的动机是什么？
This lesson is thoroughly motivated.
这节课非常生动有趣。
They lack the motivation to study.
他们缺乏学习的积极性。
He is motivated by good intentions.
他的动机是善良的。