这位歌手在英国逗留期间一直住在酒店里。

The singer remained in the hotel for the ___duration of his stay in the UK.

如果您年龄在18到30岁之间，我们提供各种工作，持续时间从两周到三个月不等。

If you are between 18 and 30 years old, we offer you a wide range of jobs with a ___duration varying from two weeks to three months.

由于受欢迎的需求，会议的持续时间被延长了。

The ___duration of the conference was extended due to popular demand.