第1个回答 2010-02-09
It's seven days in a week.本回答被提问者采纳
第2个回答 2010-02-09
One week has seven days.
第3个回答 推荐于2018-04-27
One week has 7 days.
A week is made up of 7 days.
There are 7 days in a week.
或者: A week consists of 7 days.本回答被网友采纳
第4个回答 2010-02-09
是There are seven days in a week.