Present conditional

Present conditional conditional 请问什么是unreal past conditional 和unreal present conditional?能个给出2个关于睡眠的例子吗? Present unreal conditional with.什么意思?下列四个句子是什么意思啊?1.Present unreal conditional with unless,only if,and even of2.Unless clauses include exceptions that would change the speaker's decision.3.Only if clauses stress the co first conditional 英语中one conditional,second conditional,third conditional second conditional与third conditional的区别 Conditional offer firm acceptance conditional approval是什么意思 conditional access是什么意思 present Present. conditional coefficient of variation是什么意思 conditional offer 转成 unconditional offer conditional sentences翻译成中文 conditional approval是什么意思及反义词 past real conditional 的句型是什么? voluntary conditional general offer何意?