她在派对上夸张地炫耀新裙子，这种做作的表现让人很不舒服。

Her exaggerated ___ostentation with her new dress at the party made people uncomfortable.

他的新车完全是为了炫耀，充满了不必要的豪华装饰。

His new car is purely for ___ostentatious display, loaded with unnecessary luxury features.