在第二语言习得研究领域，颇有影响的当数美国语言学家克拉申提出的输入理论。

In the study field of SLA, the Monitor Model put forward by Krashen is an important and influential theory.

youdao

在第二语言习得研究领域，颇有影响的当数美国语言学家克拉申提出的输入理论。

In the study field of SLA, the Monitor Model put forward by Krashen is an important and influential theory.

youdao