语言交换主要指的是，不同母语背景的学习者，通过多种方式教授彼此的母语。Language Exchange mainly means native speakers of two different languages teach each other their own native languages through various methods.比如，以汉语为母语的人士教以英语为母语的人士汉语，作为交换，以英语为母语的人士教以汉语为母语的人士英语。For example, Chinese native speakers teach English native speakers Chinese, and for an exchange, English native speakers teach Chinese native speakers English.外语水平接近母语的人士也可以参加这种学习。Those who have foreign language proficiency close to native level can also participate in Language Exchange.