in two days 是2天内还是2天后？

原文：

• When will it get delivered? I am leaving for a trip in 14 days, I would like to receive it before then.
• Does the 15 days include weekends? My trip is on August 14.
• One last question before confirming my order (thank you for your patience)....
• Please try to ship it out as soon as possible. It would be great if I receive it before August 14.

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1.in 14 days

结合上下文会发现，意思是14天后。顾客14天后要去旅行，想在旅行前收到包裹。

2.on August 14 在具体某天用on

想起了这个顺口溜：

in年in月in季，on日on节on某夜，at时分和深夜。年月季节都用in，一周两周要用in，上午下午还是in。

3.It would be great if... 实用句型

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in two days

百度上找到的如下：

1. 如果动作已经发生，那么，in + 时间段：在......内。例如：

He walked two hundred and sixty miles in eight days.

他在八天里走了二百六十英里。

2. 如果动作在将来发生，那么，in + 时间段：在......后。例如：

I'll have some breakfast ready in a few minutes.

我将在几分钟后把早餐准备好。

谷歌上找到的如下：

It does have both those meanings.它确实具有这两个含义。

(i) = before 2 days have elapsed. 在2天过去之前。

(ii) = in two days' time (from now). 两天后（从现在开始）。

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in two days 和 within two days 的区别：

If today is Monday, and a company tells me:

如果今天是星期一，并且一家公司告诉我：

Your package will arrive in two days' time.

您的包裹将在两天后到达。

then I will expect the package to arrive on Wednesday.

那么我预计包裹会在星期三到达。

However, if today is Monday, and a company tells me:

但是，如果今天是星期一，并且一家公司告诉我：

Your package will arrive within two days.

您的包裹将在两天内到达。

then I will expect the package to arrive on Tuesday or Wednesday.

那么我预计包裹会在星期二或星期三到达。

In other words, 'in two days' time' is typically a prediction, while 'within two days' specifies an upper limit.

换句话说，“in two days”通常是一个预测，而“within two days”指定上限。

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