relatively small placental mammals having a single pair of constantly growing incisor teeth specialized for gnawing
造句
用作名詞(n.)
I\\\'ll dig like a psychotic rodent if I have to. 我可以挖的像發瘋的嚙齒動物。
And Oregon, \\\"The Beaver State,\\\" borrows its nickname from the large, flat-tailed rodent that uses trees to build dams. 俄勒岡州，也成為河貍之州，從一種用樹木建大壩的大尾巴嚙齒動物得來的。