In life, each of us can't exist in isolation, and we need to cooperate with each other, help each other and even depend on each other. There are many sayings in Chinese that describe this relationship, such as sharing weal and woe and being closely related. Today, Teacher Zhang will teach you an idiom to describe this relationship: the lips are dead and the teeth are cold.

If you want to know the origin and meaning of this idiom, you have to start with a distant story.

Now, everyone knows the origin and specific meaning of the idiom "the lips die and the teeth are cold". When we describe the close relationship between the two sides, interdependence, and no one can do without each other, we can say that our lips are dead and our teeth are cold, and we can also say that our lips and teeth are interdependent.