grammar什么时候加"s"?
问题描述：
grammar什么时候加"s"?
grammar 那是什么时候用可数呢?learn more grammar(s)
这里的s要不要!
(要我看得懂的)用中文就可!
答
可以肯定的告诉你是可数的 grammar [grámmər] (plural grammars) noun 1.rules for language:the system of rules by which words are formed and put together to make sentences 2.particular set of langua...