You should receive a reply within seven days.

你会在七天之内收到答复。

《牛津词典》

A neighbour sheltered the boy for seven days.

一个邻居将这个男孩藏了7天。

《柯林斯英汉双解大词典》

Carter was remanded in custody for seven days.

卡特被取保候审了7天。

《柯林斯英汉双解大词典》

Louie Zamperini and pilot Russell Allen Phillips survived forty-seven days at sea before their raft washed up on an island.

VOA: special.2011.05.04

They different greatly in style. Genesis 1 is formalized, it's highly structured, it has the seven days and everything's paired up.

风格迥异，《创世纪》1，很书面化,结构严谨，什么东西都是成双成对的。

耶鲁公开课 - 旧约导论课程节选

What am I doing? Ah, it's Sunday morning. So... And I usually work seven days a week.

我在写什么？啊，是周日的早晨。所以……我一般都是一周工作七天的。

正在写论文 - SpeakingMax英语口语达人

Unlike other European public transit systems, it stays open 24 hours a day, seven days a week.

BBC: Subway systems by the numbers

"Suppliers normally give you seven days to get the booking forms back to them, " she says.

BBC: Stamps of disapproval over postal strike

Announcements in the past seven days suggest that figure will be closer to 100%.

BBC: Western Health Trust may close all its care homes