perspicacious [ˌpɜ:rspɪˈkeɪʃəs]

例句:

• It is very perspicacious of you to find the cause of the trouble so quickly.
  你真是明察秋毫，问题的原因这么快就找出来了。
  
• Keen, calculating, perspicacious, acute and astute — I was all of these.
  敏锐 、 慎重、聪慧 、 深刻、机智一一这些就是我的特点.
  
• He's an impartial and perspicacious judge.
  这位法官明镜高悬.
  
• Lyrically, she's perspicacious beyond her years, too.
  来自BBC
• So thick a mist, that the most perspicacious eye could see but a little way.
  来自S. Johnson
• More perspicacious neighbors, the Paulsens among them, suspected that Joey also enjoyed being the smartest person in the house.
  来自NEWYORKER