learn grammar的用法和样例：
例句
- He studies grammar and rhetoric.
他学习语法和修辞。 - However,in doder not to dffend people,learning about language etiquette is just as important as learning grammar or vocabulary.
然而，为了不侵犯到别人，学习语言上的礼仪与学习语法和词汇同样重要。
learn grammar的相关资料：
临近单词
learn up
learn
learner's autonomy in English study
learn or discover with certainty.
Learn to ask about others'preference
learn through experience or practice
learnt and evaluated characteristics
learn a language through translation
Learnig English must be persistent.
Learn to speak rudimentary Japanese.
Learn Vectorquantizationneural network
Learners' Guidance Group service system
