Late 16th century; earliest use found in Thomas Wilcox (c1549–1608), Church of England clergyman. Partly (i) from Middle French synedrion.
英语词典包含243303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。