live on

柯林斯词典

1. PHRASAL VERB If you live on or live off a particular amount of money, you have that amount of money to buy things. 靠 (某數額的錢) 過活
...people trying to live on $100 a week. …設法靠每周$100過日子的人們。
2. PHRASAL VERB If you live on or live off a particular source of income, that is where you get the money that you need. 以…爲收入來源
The proportion of Americans living on welfare rose. 靠福利生活的美國人的比例上陞了。
3. PHRASAL VERB If an animal lives on or lives off a particular food, this is the kind of food that it eats. 以…爲主食
The fish live on the plankton. 這種魚以浮遊生物爲主食。