n. [
]水螅属
；
现的问题；难于根绝的祸患（hydra的复数）
]水螅属；现的问题；难于根绝的祸患（hydra的复数）用户正在搜索
down-counter, downcountry, downcourt, downcut, downcutting, downcycle, downdip, down-Doppler, downdraf, downdraft,
相似单词
hydrargyrophobia, hydrargyrum, hydrarthrodial, hydrarthrosis, hydrarthrus, hydras, hydrascreen, hydrase, hydrasorter, hydrastine,