Gb	Eng
松鼠，啮齿类动物的代表；举例介绍每一个生词的用法	The squirrel, an example of a rodent; introduced each new word with examples of its use.
被虫蛀的被虫钻透或咬啮的	Bored through or gnawed by worms.
那两个齿轮一啮合, 机器就启动了.	The two cog-wheels engaged and the machine started.