n.生存；生计；存在

Subsistence is not possible in such conditions. 在这种情况下是无法生存的。

Without the right to work, there will be no guarantee for the right to subsistence. 没有动劳权，生存权利也就没有保障。

They had no visible means of subsistence. 他们生计无着。

Even if it is also written to help people write letters to be a subsistence living. 哪怕是代笔替人写书信也能够成为一个维持生计的活。

However, people in the world continue to face challenges and threats to subsistence security. 但是，人类生存安全面临的挑战和威胁仍继续存在。