logon hours for是什么啊?

logon hours for是什么啊? logon是什么意思? I slept for two hours 和 I has slept for two hours的区别是什么 I never sleep for less than nine hours.中文是什么? i have waited for two hours 的同意句是什么 semester hours,quater hours 是什么 How long did you study yesterday?I studied( )four hours.A in B for C.at这是什么句型啊 logon什么意思 talk for hours for tow hours work for hours 翻译 He shouldn't eat ___ for 24 hours.A nothing .B 、everthing C、 anything D 、somethingHe shouldn't eat ___ for 24 hours.A nothing .B 、everthing C、 anything D 、something 这道题答案是什么、我要方法啊、方法、. eat a for day pandas hours tweive怎么连啊~ He works for tow hours(对for tow hours提问) you shoulen't eat anything for 24 hours .的同义句是什么you shouldn't eat anything for 24 hours .（改为同义句）you should ___ ___ for 24 hours . login和logon怎么读? You will have been waiting for more than two hours 这是什么时态 Three hours _(be)enough for us to finish the task填什么,理由是什么