bigwig       
noun [ C ]  informal uk/ˈbɪɡ.wɪɡ/ us/ˈbɪɡ.wɪɡ/
 大人物,要人
a person who has an important or powerful position
  We were invited to a lunch with local bigwigs. 我们受邀与当地要人共进午餐。 
 Compare: kingpin
 
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