A week has seven days.

一周有七天。

youdao

usually seven days before the depositor has a right to make a withdrawal .In normal practice

通常是七天前通知银行，存款人才有权力提取存款。

youdao

Anyone out in the open who touches someone who has been killed with a sword or someone who has died a natural death, or anyone who touches a human bone or a grave, will be unclean for seven days.

无论何人在田野里摸了被刀杀的，或是尸首，或是人的骨头，或是坟墓，就要七天不洁净。

youdao

He works seven days a week, because he has lots of bills to pay.

VOA: standard.2010.03.15

These included "people who are not prepared to work what has to be shift work, it's a service that has to be delivered seven days a week, 24 hours a day" and people "who are not prepared or who are not able to do the very personal, intimate care that's needed and that's particularly where wages are lower than we would like to pay".

BBC: British workers 'needed on farms'

Members of a Cornish credit union which has gone into liquidation will receive their money back within seven days, a financial scheme has said.

BBC: Cornish credit union to return money within seven days

America is insisting that the inspectors should not go back until after the UN has adopted such a resolution, and Iraq has started to implement its provisions, which give it seven days to accept the demands, and 30 to produce a complete inventory of its illicit weaponry.

ECONOMIST: Coalition-building | The