I will go to see you in a day or two.为什么用in?不是有日就有on吗?这里为什么用in?

I will go to see you in a day or two.为什么用in?不是有日就有on吗?这里为什么用in?
I will go to see you in a day or two.为什么用in?
不是有日就有on吗?这里为什么用in?

I will go to see you in a day or two.为什么用in?不是有日就有on吗?这里为什么用in?
in a day or two是一两天后
“in ＋一段时间”表示“多久以后／以内”,常与将来时连用.如：in half an hour； in ten minutes； in a few days等.
I'll have some breakfast ready in a few minutes...几分钟后我就能做点儿早饭出来.
They'll be back in six months.6个月之后他们就会回来.

in a day or two是一两天后
“in ＋一段时间”表示“多久以后／以内”，常与将来时连用。如：in half an hour； in ten minutes； in a few days等。
I'll have some breakfast ready in a few minutes...几分钟后我就能做点儿早饭出来。
They'll be back in s...

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in a day or two是一两天后
“in ＋一段时间”表示“多久以后／以内”，常与将来时连用。如：in half an hour； in ten minutes； in a few days等。
I'll have some breakfast ready in a few minutes...几分钟后我就能做点儿早饭出来。
They'll be back in six months.6个月之后他们就会回来。

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