Definition: having a lot of influence Level: C1
他的父亲是当地政坛一位有影响力的人物。
His father was an ___influential figure in local politics.
尽管已经退休，她仍然是该行业中一个有影响力的声音。
Despite her retirement, she remains an ___influential voice in the industry.
这项研究对改变公共政策产生了影响。
The study was ___influential in changing public policy.
