充内行

• smatter
• to pretend to be an insider

例句

1. 她自称精通计算机，其实她是假充内行。
   She claims to know all about computers but really she's a sham.
2. 她不过是假充内行罢了，实际上对艺术一窍不通。
   She's just a pseud; she knows nothing about art really.