hydra
/'haidrә/
📖 中文释义
- n. 水螅, 九头蛇, 难以根除之祸害
🔗 释义中的汉语词
🧩 词形变化
复数 hydras
📘 English Definition（英文释义）
- n. (Greek mythology) monster with nine heads; when struck off each head was replaced by two new ones
- n. a long faint constellation in the southern hemisphere near the equator stretching between Virgo and Cancer
- n. trouble that cannot be overcome by a single effort because of its many aspects or its persistent and pervasive quality