1. Every part of the system has a backup. 系统的每个部分都有备用元件。 来自柯林斯例句
2. The police had backup from the army. 警方得到了军方的增援。 来自《权威词典》
3. She once sang backup for Madonna. 她曾经为麦当娜伴唱. 来自《简明英汉词典》
4. Have you kept a backup of this file? 你把这文件备份了 吗 ? 来自《简明英汉词典》
5. File in the target drived : BACKUP directory will be erased strike any key when ready. 目标驱动器标 d: BACKUP目录 内的文件将被删除,准备好后按任意键继续. 来自互联网