to play an important part in something
在某事中扮演重要角色 (zai mou shi zhong ban yan zhong yao jue se)
"She played a pivotal role in the success of the team."
"她在团队的成功中发挥了关键作用" (ta zai tuandui de chenggong zhong fāhuī le guānjiàn zuòyòng)
a person who is generous and caring
At the right or appropriate time.
to be responsible for something bad that happens
to perform well or meet expectations
to fulfill one's responsibilities or obligations
to do something extremely well or successfully
