Definition
to contribute to accomplishing something
（在某事中）发挥作用
The support from the audience played a crucial part in the outcome of the match.
观众的支持在比赛结果中发挥了至关重要的作用。
Every member played a significant part in the success of the project.
每个成员都在项目的成功中发挥了重要作用。
Her efforts played a vital part in the policy change.
她的努力在政策改变中发挥了至关重要的作用。