他在上大学前休了一年的间隔年，去非洲做志愿者。

He took a ___gap-year to volunteer in Africa before starting university.

她计划在进入大学前度过一个间隔年，去东南亚旅行并做志愿者工作。

She plans to take a ___gap-year before college to travel around Southeast Asia and do volunteer work.