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单词	propterygium
释义	propterygium noun prop·​ter·​yg·​i·​um plural propterygia -ēə : the anterior of the three principal basal cartilages in the paired fins of some fishes (as sharks and rays) compare basipterygium Word History Etymology New Latin, from pro- entry 1 + Greek pterygion fin, literally, small wing
随便看	lose momentum lose money lose no time lose one's appetite lose one's balance lose one's bearings lose one's composure lose one's cool lose one's cool/composure lose one's grip lose one's head lose one's heart lose one's heart (to) lose one's heart to lose one's job lose one's life lose one's looks lose one's lunch lose one's marbles lose one's mind lose one's mind/sanity lose one's nerve lose one's place lose one's reason lose one's sanity

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。