I take a couple of hours off this afternoon?这里的off是什么 词组?

I take a couple of hours off this afternoon?这里的off是什么 词组? I cooked dinner a couple of time in my opinion ,you'd berrer take a couple of days off.a.i'm afraid sob.let me seec.i'll take your advice a couple of 并翻译例句but i have a couple of leads a couple of a couple of a couple of weeks a pair of couple a couple of造句, a couple of a couple of a couple of I might be in Shanghai in a couple of days. I am free for a couple of hours. I will be back in a couple of I am free for a couple of hours. W:Do you mind if I take a couple of hours off this afternoon?M:OK,but for what?里面的but for 可以说a couple of couple?一对夫妇 可以说a couple of couple不啊?