柯林斯词典rodent /ˈrəʊdənt/ (rodents) 1. N-COUNT Rodents are small mammals which have sharp front teeth. Rats, mice, and squirrels are rodents. 齧齒動物 返回 rodent剑桥词典any of various small mammals with large , sharp front teeth , such as mice and rats 齧齒動物（如老鼠等） 返回 rodent