不可一世-----as proud/vain as a peacock

例句：

A: She's always above making friends or assocating with others.
她总是不屑和他人交友和交往。
B: I really don't know why she is always as prond as a peacock. Doesn't she know diamond cut diamond?
我真搞不懂，为何她老是不可一世。难道她不知道人外有人吗？
注释：
be above + V-Ing 不屑······