1. My friend is such a chowhound, he's always the first one to try out new restaurants.
我的朋友可是个美食家，他总是第一个去尝试新的餐厅。

2. Whenever there's a buffet, the chowhounds in our office go crazy and eat as much as they can.
只要有自助餐，我们办公室里的贪吃鬼们就疯狂地大吃特吃。