VERB
激励;驱策;迫使
When something such as an emotion impels you to do something, it affects you so strongly that you feel forced to do it.
例句
...the courage and competitiveness which impels him to take risks...
促使他冒险的勇气和竞争精神
I felt impelled to go on speaking.
我感到不得不继续说下去。