为什么suggestion不用复数?can you give me some suggestion?

为什么suggestion不用复数?can you give me some suggestion? suggestion有复数吗? 护士节英文为什么不用复数 He like hamburger. 为什么 hamburger不用复数? make no difference为什么不用复数 some other place place 为什么不用复数 any city为什么不用复数形式 another minute.minute.为什么不用复数呢 suggestion My suggestion that we should stick to our original plan was finally accepted.为什么不用which而用that? I am glad to tell you that your suggestion (is highly spokenof) 为什么不用is spoken highly of We are going to take Mr.Li's suggestion这里suggestion要不要用复数.RT,. ca（co）3 制取co2 为什么不用硝酸 Thanks to your _______（suggest）,I got to complete the job in time.为什么答案是suggestion不是suggestions?suggestion不是可数单词吗为什么不用加s? suggestion有复数形式么还是不可数名词? take the subway 为什么不用Subway的复数呢同上 Doing eye exercise 中为什么eye不用复数? Special 1 has beef and onion .onion为什么不用复数