n.生存；生計；存在

Subsistence is not possible in such conditions. 在這種情況下是無法生存的。

Without the right to work, there will be no guarantee for the right to subsistence. 沒有動勞權，生存權利也就沒有保障。

They had no visible means of subsistence. 他們生計無著。

Even if it is also written to help people write letters to be a subsistence living. 哪怕是代筆替人寫書信也能夠成為一個維持生計的活。

However, people in the world continue to face challenges and threats to subsistence security. 但是，人類生存安全面臨的挑戰(zhàn)和威脅仍繼續(xù)存在。