吕文杰老师以长句“A beautiful teacher called Lily is teaching you difficult language, English, and how you can solve various gammar problems.”为例引出句法和词法的区别，讲解词类不等于句子成分，并对句子成分加以分析，为学生们的语法学习奠定了基础。

吕文杰老师讲解