1. She professed total ignorance of the matter.
   她自称对那事一无所知.
2. He displayed a willful ignorance of their plight.
   对于他们的困境他故意装作一无所知
3. Many species have been wiped out through sublime ignorance.
   许多物种由于人们的极端无知而灭绝了。
4. Education delivered him from ignorance.
   教育把他从无知中解救出来。
5. The Government pleaded ignorance.
   政府借口不知情。

　1个名词解释