| 释义 |
hydraBrE /ˈhaɪdrə/NAmE /ˈhaɪdrə/ nounHydra () 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）(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(biology 生物) an extremely small water creature with a tube-shaped body and tentacles around its mouth 水螅 |