fox是可數還是不可數名詞

　　There was a fox on the prowl near the chickens.

　　有一只狐貍在雞群附近徘徊。

　　Fox, badger, and weasel are regularly seen here.

　　這里經常看得到狐貍、獾和黃鼠狼。

　　We once watched a red fox attacking a groundhog.

　　我們曾看見一只紅狐攻擊一只土撥鼠。