她虚荣心极强。

She is terribly ___vain.

当人们经常受到赞美时，许多人会变得虚荣。

Many people become ___vain when they receive constant compliments.

他对自身外表的虚荣执念，周围的人都看在眼里。

His ___vain obsession with his looks was evident to everyone around him.