learing about language etiquette is just as important as learning grammer or vocabulary

learing about language etiquette is just as important as learning grammer or vocabulary
learing about language etiquette is just as important as learning grammer or vocabulary

learing about language etiquette is just as important as learning grammer or vocabulary
学习语言礼节,如学习语法或词汇那么重要

学习谈话礼仪和学习语法词汇一样重要

学习语言的礼仪和学习语法和词汇一样重要