until the end of something, especially a war直到结束(尤指直至战争结束)(informal)for a very long time(非正式)长期地
英语四级真题
For example, sleep duration has declined from some eight hours in the 1950s to seven in recent years.
2016年6月四级真题(第一套)听力 Section C
Participants were balanced across the three groups for age, sex, educational background, severity and duration of depression, and use of antidepressant.
2019年6月四级真题(第三套)阅读 Section C
柯林斯高阶英汉双解学习词典释义
N-UNCOUNT
(某事件或状态的)持续时间,期间
The duration of an event or state is the time during which it happens or exists.