Introductions and greetings in all languages have the same purpose: to establish contact with another person, to recognize his or her existence, and to show friendliness.

• 一、内容简介:以任何一种语言所做的介绍与问候都有一个共同的目的:与他人建立关系、意识到他人的存在、表现出自己友好的一面。