rodent
释义：
rodent
rodent是（Rodentia）的简称，is an order of mammals also known as rodents, characterised by two continuously-growing incisors in the upper and lower jaws which must be kept short by gnawing.
参见百度百科介绍
rodent
rodent是（Rodentia）的简称，is an order of mammals also known as rodents, characterised by two continuously-growing incisors in the upper and lower jaws which must be kept short by gnawing.
参见百度百科介绍