You should receive a reply within seven days.

你会在七天之内收到答复。

《牛津词典》

The ticket gives you unlimited travel for seven days.

凭本车票在七日内可自由乘车不受限制。

《牛津词典》

Every sporting event on television and satellite over the next seven days is listed.

未来7天通过电视和卫星转播的每个体育赛事均已列出。

《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