网站首页  英汉词典  笔画笔顺  成语词典  近义词  反义词  中文组词

请输入您要查询的英文单词:

 

单词 backup
释义 back·upBrE /ˈbækʌp/NAmE /ˈbækʌp/ noun [U, C] extra help or support that you can get if necessary 增援;后援◆The police had backup from the army. 警方得到了军方的增援。◆We can use him as a backup if one of the other players drops out. 如果有参赛者退出,我们可以用他作为替补。◆a backup power supply 备用电源(computing 计算机) a copy of a file, etc. that can be used if the original is lost or damaged (文件等的)备份◆Always make a backup of your work. 所有文件都须备份。◆a backup copy 备份文件  ➡  see also back sth↔up at back verb
随便看

 

英汉词典包含293704条英汉翻译词条,涵盖了常用英语单词及词组短语的翻译及用法,是英语学习的必备工具。

 

Copyright © 1997-2024 Mahpro.com All Rights Reserved
更新时间:2026/10/2 5:31:09