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单词 immunity
释义 immunity
n. (pl. -ies)
  1. Med. the ability of an organism to resist infection, by means of the presence of circulating antibodies and white blood cells.
  2. freedom or exemption from an obligation, penalty, or unfavourable circumstance.
Etymology: ME f. L immunitas (as IMMUNE): sense 1 f. F immunit{eacute}
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