了如指掌

• His grasp of international realities was masterly .
  他对国际形势了如指掌。
• I can read his mind like a book .
  我对他的心事了如指掌。
• You're right on top of this thing .
  这一切你都了如指掌。
• They were mature men, and knew bulls thoroughly .
  他们都非常老练，对牛的秉性了如指掌。
• Janey knew every fold of the beaufort mystery .
  珍妮对鲍富特秘密的所有细节，都了如指掌。
• He had known every bar and dive around this part of town .
  这里的酒店包括地下酒吧他都了如指掌。
• He has his provensal legendary lore at his fingers' ends .
  他对普罗旺斯地区的口头传说了如指掌。
• He read her case .
  他对她的处境了如指掌。
• He seemed impressed by her informed, straightforward answers .
  对了如指掌、坦白直率的回答，他似乎颇受感动。
• He is a taxi driver , so he knows london like the back of his hand .
  他是计程车司机，对伦敦市的街道了如指掌。