be instrumental in
US /biː ˌɪn.strəˈmen.t̬əl ɪn/
UK /biː ˌɪn.strəˈmen.təl ɪn/
成语
起关键作用, 对...有帮助
to be important in making something happen
示例:
•
She was instrumental in the success of the project.
她在项目的成功中起到了关键作用。
•
The new evidence was instrumental in solving the case.
新证据对破案起到了重要作用。