1835, genus name of a freshwater polyp, from Greek Hydra, many-headed Lernaean water serpent slain by Hercules (this sense is attested in English from late 14c.), from hydor "water" (see water (n.1)); related to Sanskrit udrah "aquatic animal" and Old English ottur "otter." Used figuratively for "any multiplicity of evils" [Johnson]. The fabulous beast's heads were said to grown back double when cut off, and the sea creature is said to be so called for its regenerative capabilities.
雙語例句
1. We may be facing a hydra that defies any easy solution.
我們也許正面臨一個無法輕易解決的難題.
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2. Week of Hydra: Double growth for Hydra and Chao Hydras.
九頭蛇周: 九頭蛇產量加倍.
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3. Mixed with moisturizing ingredients to maintain skin Hydra silk slip.
混合有保濕成分,維持肌膚水潤絲滑.
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4. I am declaring general emergency codes Bandersnatch and Hydra.
聲明全面緊急代碼:想象猛獸和九頭怪.
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5. It is a hydra - headed tree of unreason with a thousand roots.