I will be back in five minutes.the work should be done in a week请翻成中文:in a week是指“一周内”还是“一周后”?in a five mintues是指“五分钟内”还是“五分钟后”?

i will be back in touch, “I will be back! soon i will be back in your arms I will be back in a couple of I will be back in a matter of hours. i will be back in touch,什么意思 I will be back in three days.为什么要有be 为什么不是I will back in three days. i will be back soon i will be coming back I will be back,from I will be back,We will be back i will be back为什么要be I will be back in a minute.back不是动词吗?为什么前面还要加be呢? I hope i will be back in a week.同意句是什么? He will be back in four days I don't know____he will be back. I will be back?It is a i will be come back 和I will be back是 一个意思吧?I will be back 和 I will be come back一个意思么?