a situation in which you do not have things or conditions that are usually considered necessary for a pleasant life

They used sleep deprivation as a form of torture. 他们把不让睡觉作为一种折磨人的手段。

There is awful deprivation in the shanty towns. 贫民窟里的生活条件十分糟糕。

There were food shortages and other deprivations during the Civil War. 南北战争期间食品短缺，物资匮乏。