have a big head

• 自负; 骄傲自大

have a big head的用法和样例：

例句

1. Who do you think you are, you really have a big head.
   你以为你是谁，你真的很自负。
2. Ever since he got that promotion, Dave's had a big head.
   自从得到那次晋升以来,戴夫就自高自大起来。