subsistence

1. N-UNCOUNT Subsistence is the condition of just having enough food or money to stay alive. 生存

...below the subsistence level. …在生存线之下。

2. ADJ In subsistence farming or subsistence agriculture, farmers produce food to eat themselves rather than to sell. 自给自足的[ADJ n]

Many Namibians are subsistence farmers who live in the arid borderlands. 许多纳米比亚人都是自给自足的农民，居住在干旱的边境地区。