| 词汇 | hydra |
| 释义 | hydra 1 ENTRIES FOUND: hydra (noun) hydra /ˈhaɪdrə/ noun plural hydras hydra /ˈhaɪdrə/ noun plural hydras Learner's definition of HYDRA 1 Hydra [singular] : a monster in Greek mythology that has many heads（希腊神话中的）多头蛇，许德拉 2 [count] : a very complicated and serious problem that cannot be easily solved棘手复杂的问题；难以根绝的祸患 trying to slay the hydra of inflation试图根除通货膨胀这一祸患 |
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