This course covers about 400 new words, 50 grammar points and sentence patterns.

该课程收集了收入近400个生词，50多个语法点和基本句型。

youdao

This course covers about 400 new words, 50 grammar points and sentence patterns.

该课程收集了收入近400个生词，50多个语法点和基本句型。

youdao