They are motivated by a need to achieve.他们被成功的欲望驱使。

groups motivated by envy and the lust for power被嫉妒和对权力的渴望驱使的一群人

My trip was motivated by a desire to leave home.我去旅行是因为我想离开家。

The decision to keep people in the dark was motivated by money.金钱成为对人们隐瞒此事的动机。