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首页英语词典hydrahydra英英释意

hydra

['haɪdrə]

hydra的意思英英释义实用场景例句

n. 九头蛇；[无脊椎] 水螅；难以根除之祸害

英英释意

1. trouble that cannot be overcome by a single effort because of its many aspects or its persistent and pervasive quality;: "we may be facing a hydra that defies any easy solution"

2. small tubular solitary freshwater hydrozoan polyp