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词汇 hydra
释义

hydra

noun
/ˈhaɪdrə/
/ˈhaɪdrə/
  1. Hydra
     (in ancient Greek stories古希腊神话) a snake with several heads. As one head was cut off, another one grew. In the end it was killed by Hercules.许德拉，多头蛇（砍去一个头即长出新头，后为大力神赫拉克勒斯所杀）
  2. (formal) a thing that is very difficult to deal with, because it continues for a long time or because it has many different aspects棘手的复杂事物；难以根绝的祸患
  3. (biology生物) an extremely small water creature with a body that is like a tube in shape and tentacles around its mouth水螅
    4. 词源via Latin from Greek hudra ‘water snake’, named by Linnaeus because, if cut into pieces, each section can grow into a whole animal.
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