单词	Protohydra
释义	Protohydra noun Pro·​to·​hydra "+ : a genus of marine coelenterates similar to Hydra but having no tentacles Word History Etymology New Latin, from prot- + Hydra
随便看	self-sat self-satirizing self-satisfaction self-satisfied self-satisfying self-scrutinies self-scrutiny self-sealing self-searching self-searchings self-secure self-security self-seed self-seeker self-seekers self-seeking self-select self-selected self-selecting self-selection self-selection bias self-selections self-selects self-serve self-service

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。