The phenomenon of language loss, or attrition, occurs not only in the second language learners.People who move to a new language community may lose skills in their first language.

• 语言遗忘的现象不仅发生在第二语言的学习者身上，即第一语言的使用者也可能在某些因素的影响下，而逐渐丧失其第一语言的使用能力。