in advance和ahead区别

in advance和ahead区别

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in advance和ahead区别

in advance 和 ahead  是两个意思相近的词组,都有“提前”的意思,但是它们的用法有所不同,以下是二者的用法和区别:

1. in advance:这个词组侧重表达“预先或事先”做某事。

例句1:You have to book the tickets in advance.

你得提前订票。

例句2:Do you think I should tell her in advance that I'm a vegetarian?

你认为我应该提前告诉她我是素食主义者吗?

例句3:We had to pay the full price in advance for an escorted tour.

我们必须提前付全款,才有导游陪同。

2. ahead :这个词组侧重表达“比原定时间提前”完成。

例句4:I finished my task 15 minutes ahead of time.

我提前15分钟完成了任务。

例句5:Tom reached school ahead of time.

汤姆提前到了学校。

例句6:We were required to enter the classroom 10 minutes ahead of time.

我们被要求提前10分钟进入教室。

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