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单词 cocoon
释义 cocoon
n. & v.
--n
  1. a a silky case spun by many insect larvae for protection as pupae. b a similar structure made by other animals.
  2. a protective covering, esp. to prevent corrosion of metal equipment.
--v
  1. tr. & intr. wrap in or form a cocoon.
  2. tr. spray with a protective coating.
Etymology: F cocon f. mod. Prov. coucoun dimin. of coca shell
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