duration

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.

项目的持续时间取决于资源的可用性。

The ___duration of the project depends on the availability of resources.

这位歌手在他英国停留的整个期间都待在酒店里。

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