heavy hitter
noun/ˌhevi ˈhɪtə(r)/
/ˌhevi ˈhɪtər/
(also big hitter)
(informal)- a person who is successful and has a lot of influence
（尤指商业或政界的）大亨，要员，大人物 - Hollywood/industry/political heavy hitters
好莱坞大腕；行业大佬；政坛大人物
- Hollywood/industry/political heavy hitters