someone who behaves or plays a sport in a way that is intended to attract attention or admiration, especially when this is annoying

He's not a showboat and isn't comfortable attracting attention to himself. 他不是一个爱炫耀的人，也不习惯别人把注意力集中在他身上。

He's a showboat outfielder who's famous for his flamboyant catches. 他是个爱炫技的外野手，因其浮夸的接球方式而出名。