我们确实在七天内提供价格调整，以确保我们的客户满意。

We do offer price adjustments within seven days of purchase to ensure our customer satisfaction.

youdao

如果鞋子不适合你，您可凭收据七天内退货。

If the shoes don't fit you, you can exchange within seven days with receipt.

youdao

某些产生的酸类，比如戊酸和苯丙酸，在实验进行的七天内一直存在。

Some of the individual acids that were released, such as pentanoic and benzoic acid, were present throughout all seven days that the experiment was conducted.

youdao

Now the story of creation in Genesis 1 takes place over seven days, and there's a certain logic and parallelism to the six days of creating.

创世纪》第一章中的创世在七天内完成，它和六天创世的故事在逻辑上有一些对照。

耶鲁公开课 - 旧约导论课程节选