grammar class

例句：

1. 1. She is taking a grammar class at the local community college.
   她在当地的社区学院上语法课。
2. 2. The teacher explained the rules of English grammar in the grammar class.
   老师在语法课上解释了英语语法的规则。
3. 3. I need to improve my grammar before I can write an essay.
   我需要在写文章之前提高我的语法水平。