每一个学生必须通过学习足够的发音、语法和句子结构知识来理解它。

Every student has to study enough pronunciation, grammar and sentence structure to understand this!

youdao

每一个学生必须通过学习足够的发音、语法和句子结构知识来理解它。

Every student has to study enough pronunciation, grammar and sentence structure to understand this!

youdao