[Several years ago it became customary to talk about language acquisition(语言习得)in preference to "language learning", especially with reference to a first language.] The reason was that the process of language"acquisition"was viewed as a biological process of growth rather than as one of social learning or deliberate teaching.
【正确答案】：几年前，人们习惯于谈论语言习得（语言习得），而不是“语言学习”，特别是关于第一语言。