We know it is not "life's job" to make everything perfect

We know not what is good until we know have lost it!中文意思是什么? l really like you,although we know time is not long,but l think you really i know we can not go banck anymore,l justi know we can not go banck anymore,l just couldn' let it We know not what is good until we have lost it We do not know how important something is until we lose it 什么意思 Maybe it is ture ,that we do not know what we have got until we lost it It long before we the result of the experiment．A.will not be；will know B.is；will know C.will not be；know D.is; know Maybe it is true that we do not know what we have got until we lose it,but it is also true that we 谁能帮我翻译一下 it is true that we do not know what we have got until we lose itthat 可以省略吗? We know it is not life's job to make everything perfect Life is not always what we want it to be.We fight.We cry.And sometimes,we give up.But inour hearts,we know it's still love. Really, music is used to relax. Know. Happy is what we want is not it.这句翻译成中文是什么意思呀? What we know is not much.What we do not know is immense. we know not what is good until we have lost maybe it is trueMaybe it is true that we do not know what we have got until we lose it,but it is also true that we 这首男女合唱的歌名 it is true that we do not know what we have got we lose it.选择 A.after B.until C.though 16.It ____ long before we ____ the result of the experiment.A.will not be,will know B.is ,wil16.It ____ long before we ____ the result of the experiment.A.will not be,will know B.is ,will know C.will not be ,know D.is ,know]可是不会解释为什 What we know is nothing; what we do not know is immense中文是什么意思?