knew nothing about

• v. 毫无所知

knew nothing about的用法和样例：

例句

1. He knew nothing about investment; he just it went it blind.
   他对投资一窍不通，只是瞎搞一气罢了。
2. I was surprised to find that he knew nothing about the subject.
   我惊奇地发现，他对这个科目竟一无所知。
3. He professed that he knew nothing about the plot.
   他声称对该阴谋毫不知情。