"high and mighty" in Chinese (Simplified)
趾高气扬自以为是
Definition
表现得好像自己比别人重要或优秀；自大自负。
Usage Notes (Chinese (Simplified))
这是一个非正式表达，多带贬义，用来批评自以为是或盛气凌人的人。常见于 'don't act all high and mighty'。不适合正式场合。
Examples
Don't be so high and mighty about your success.
不要因为成功就变得**趾高气扬**。
She always acts high and mighty with her classmates.
她总是对同学表现得**趾高气扬**。
Nobody likes it when you get high and mighty.
没人喜欢你**自以为是**。
He walked into the room looking all high and mighty, like he owned the place.
他走进房间，一副**趾高气扬**的样子，好像这里是他的一样。
Why are you being so high and mighty today? Did something happen?
你今天怎么这么**自以为是**？发生什么事了吗？
People get tired of friends who act high and mighty all the time.
大家会厌倦那些总是**趾高气扬**的朋友。