Subject：He is as proud as a peacock.
A: Wendy got good grades again. She is clever but she is as proud as a peacock!
B: Well, never mind.
proud as a peacock
Proud as a peacock是“极其骄傲”的意思。其英文解释为：overly proud; vain。使用的时候，通常和as连用，即为：as proud as a peacock.
e.g. Mike's been strutting around proud as a peacock since he won that award.
e.g. I sometimes think Elizabeth must spend all day admiring herself in a mirror. She's as proud as a peacock.
e.g. She was proud as a peacock when she passed her driving test at the first attempt.
e.g. June is as proud as a peacock after winning her first swimming certificate.
Ps：get good grades：考试考得好，成绩优秀 never mind：别介意