（猜一猜）there is a small picture.with many teeth onits sides.it is friend of a letter.with it,a letter goes all over the world.what is it?

分类: 作业答案 • 2022-01-02 15:30:47

问题描述：

（猜一猜）there is a small picture.with many teeth on
its sides.it is friend of a letter.with it,a letter goes all over the world.what is it?

答