A pivotal point (literal and figurative); (formerly) specifically †a point of reference for a wheeling body of troops.
Late 18th century; earliest use found in David Dundas (?1735–1820), army officer and military writer.
英语词典包含464360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。