subsist

subsist
verb
[no obj.]
  1. maintain or support oneself, especially at a minimal level
    （尤指最低限度地）生存，糊口，勉强维持生活
    he subsisted on welfare and casual labour.
    他靠救济金和当临时工维持生活。
    ■[with obj.](archaic)provide sustenance for
    (古)为…提供食物
    the problem of subsisting the poor in a period of high bread prices.
    在面包价格高的时期为穷人提供食物的问题。
  2. (chiefly Law)remain in being, force, or effect
    (主律)在有效期内
    ■(subsist in)be attributable to
    在于，由于
    the effect of genetic maldevelopment may subsist in chromosomal mutation.
    遗传性畸形的结果可能是由于染色体突变。
派生
subsistent
adjective
语源
  1. mid 16th cent. (in the sense 'continue to exist'): from Latin subsistere 'stand firm', from sub- 'from below' + sistere 'set, stand'
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