relatively small placental mammals having a single pair of constantly growing incisor teeth specialized for gnawing
例句
用作名词 (n.)
I'll dig like a psychotic rodent if I have to. 我可以挖的像发疯的啮齿动物。
And Oregon, "The Beaver State," borrows its nickname from the large, flat-tailed rodent that uses trees to build dams. 俄勒冈州，也成为河狸之州，从一种用树木建大坝的大尾巴啮齿动物得来的。
美
['roʊdnt]
