隔壁邻居是个大嗓门，每次打电话都能听到他在喊叫。

My next-door neighbor is a loud ___yeller, always shouting when he's on the phone.

他是个天生的爱大喊大叫的人，即使开心时说话也很大声。

He's a natural ___yeller, even when he's happy he talks loudly.