单词 backup 释义 back-up, backup, n.[back v. 8.]1. A backward movement of a vehicle. Cf. back v. 22 b.1900G. D. Hiscox Horseless Vehicles xii. 262 The single lever..controls the forward speeds and the backup, doing away with the confusion arising from a...
单词 back-up 释义 Seebackup 英语词典包含277258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。 ...