pull the wool over someone's eyes

1. If you pulled a man's wig over his eyes, he could not see what was happening. Today, when you pull the wool over someone's eyes, he cannot see the truth.
   如果你用一个人的假发盖住了他的眼睛，他就看不清眼前发生了什么事，现在，如果你用羊毛遮住了他的眼睛，那么他也看不见了，呵呵。

verb

1. conceal one's true motives from especially by elaborately feigning good intentions so as to gain an end
   1. He bamboozled his professors into thinking that he knew the subject well

   Synonym:    bamboozlesnowhoodwinklead by the noseplay false