strongman          
noun [ C ] uk/ˈstrɒŋ.mæn/ us/ˈstrɑːŋ.mæn/  -men uk/-men/ us
 打手;大力士
a man who is employed or famous for his great physical strength
  If she talks to the police, Joey's strongmen will be paying her a visit. 要是她敢告诉警察,乔伊的打手们就会去找她的。 
  literary强人;(尤指政界的)铁腕人物 
a person who is very powerful and able to cause change, especially of a political type
  Haitian strongman Duvalier could feel his power slipping away. 海地的铁腕人物杜瓦利埃能够感觉到自己的权力在逐渐丧失。