Researchers at home and abroad have found that the English past tense can only be acquired at a later stage in the developmental pattern.

国内外研究者大量的研究表明一般过去式通常难以被二语学习者习得。

youdao

Researchers at home and abroad have found that the English past tense can only be acquired at a later stage in the developmental pattern.

国内外研究者大量的研究表明一般过去式通常难以被二语学习者习得。

youdao