shrewdness       
noun [ U ] uk/ˈʃruːd.nəs/ us/ˈʃruːd.nəs/
 精明;狡猾
clear understanding and good judgment of a situation, usually resulting in an advantage
  She was a woman of great courage and political shrewdness. 她是一个非常有勇气的女人,富于政治智慧。 
 He has approached the task with commitment, intelligence, and shrewdness. 他靠着承诺、智慧和精明完成了这项任务。 
 See: shrewd
 - More examples
 - He insists his wealth comes from shrewdness and hard work rather than corruption.
 - Jones demonstrated both legal shrewdness and uncompromising moral courage.
 - He had so much natural shrewdness that his conversation was always worth listening to.