单词	placentation
释义	plac·en·ta·tion (plăs′ən-tāshən) n. 1. a. Formation of a placenta in the uterus. b. The type or structure of a placenta. 2. Botany Arrangement of placentas within the ovary.
随便看	Rom ROM rom. Rom. Roma Romagna Romaic Romain Romain de Tirtoff. romaine Roman roman Roman Roman alphabet Roman arch Roman calendar Roman candle Roman Catholic Roman Catholic Church Roman Catholicism romance romancer Roman congregation Roman Empire Romanesque

英语词典包含135693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。