feast or famine
要么很丰富，要么一无所有
口语·形容资源或机会极端不均的状态
英文释义
a situation that alternates between extreme abundance and extreme scarcity
例句
As a freelancer, his income is feast or famine—some months he's rich, others he's broke.
典故来源
源自19世纪，'feast' 指丰盛，'famine' 指饥荒，原指农业收成极端，后比喻生活或工作中极端交替的情况。