单词	Gastraeadae
释义	Gastraeadae plural noun Gas·​trae·​adae gaˈstrēəˌdē : a hypothetical group of ancestral metazoan animals structurally comparable to the gastrula Word History Etymology New Latin, irregular from Gastraea + -idae
随便看	octarchy octaroons octas octastich octasticha octastichon octastichons octastichs octastrophic octastyle octastyles octastylos octateuch octatonic octatonicism octaval octavary octave octave flute octave species octaver octaves octavest octavian octavians

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。