一般说来,介词 in 之后接时间段用于过去时态常表“在……以内”,用于将来时态常表“在……之后”。不过,在某些特定场合,译法较灵活,用于将来时、完成时或一般时也可以表示“在……内”。如:
He finished the job in three months. 他三个月之内做完了这件工作。
We will meet each other in three days. 我们将在三天后会面。
There will be a storm in three days. 未来三日内将有暴风雪。
I've been so busy I haven't had a square meal in three days. 我由于太忙,已经三天没吃上一顿正经饭了。
Try and finish the work in two days. 要力争两天内完成这项工作.
▲介词within之后接时间段表“在……以内”,既能用于过去时也能用于将来时。
The fire engine arrived within five minutes. 消防车五分钟之内就到了。
I will/would call him back within three hours. 我会在三个小时之内给他回电话。
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