show-off

名词 show-off:

1. someone who deliberately behaves in such a way as to attract attention
   同义词：exhibitionist

动词 show-off:

1. display proudly; act ostentatiously or pretentiously
   同义词：flaunt, flash, show off, ostentate, swank

1. Take no notice of him you know what a show-off he is.
   别理睬他－－你知道他多喜欢卖弄。