Old people often subsist on very small incomes.

老人往往靠十分微薄的收入艰难度日。

《牛津词典》

And how do the poor subsist on such a meagre amount?

穷人又是怎样靠这般小数目维持生活的？

youdao

Many already subsist on the mere threshold of survival.

许多人早已是仅仅能够维持生存。

youdao

In drought years, many of their cows die and they subsist on food aid.

ECONOMIST: Why the Masai send their slower children to school

The family must subsist on a single income while still paying the taxes that finance public schools.

ECONOMIST: The growth of home-schooling

Contrary to suspicions that models subsist on little more than air, Ms. Corrigan added that she is pretty health-conscious.

WSJ: Fashion Plates: Here's the Skinny on Off-the-Runway Pigging Out