No problem 为什么没加S 它是可数名词啊,还有less than = no as as 可以接比较级吗

No problem 为什么没加S 它是可数名词啊,还有less than = no as as 可以接比较级吗 No problem为什么problem不加s?是习惯用法还是其他什么原因? problem是可数名词吗如果是,在No problem中为什么不加S problem不是可数吗,那为什么no problem不加s? right,that should be no problem.为什么要be,problem为什么不加s.求句子分析! problem不是可数吗,为什么 no problem中没有s this maths problem.为什么加s this maths problem.为什么加s this是单数啊 The maths problem is too difficult.math为什么加s 到底是have a problem in doing sth还是have problem in doing sth为什么problem不加s have no problems (in) doing sth.中的problem永远都加s吗? He finally s____ in solving the problem.为什么答案“succeeded”中succeed要加ed呢,它是过去式吗,为什么? that's no problem的意思是什么 为什么I send email to my friends and play computer games.中的email（它是可数名词啊!）没加s? It's no problem 如题It's no problem 2、那是否定句 请问without question、no problem和 out of question 都有什么区别question后面需要加s吗? have (problems) with与 have (problem) with哪个正确,为什么在书上看到have some (problem) with为个固定词组，problem要加S吗？ No problem