E-Language Learning System 中美网络语言教学项目
·2,447,543篇论文数据，部分数据来源于NoteExpress
I have never experienced a better language learning system.
我不知道一个更好的语言学用具。
youdao
He published a treatise that he had written earlier on grammar, inventing his own system for the understanding and the learning of the Latin language.
发表了一篇他之前写的关于语法的论文，在这篇论文中他创建了自己的一套理解和学习,拉丁文的体系。
耶鲁公开课 - 弥尔顿课程节选
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