backup
柯林斯词典
1. N-VAR Backup consists of extra equipment, resources, or people that you can get help or support from if necessary. 后备 (设备、物资或人力)
There is no emergency back-up immediately available. 没有立即就能获得的后备。
2. N-VAR If you have something such as a second piece of equipment or set of plans as backup, you have arranged for them to be available for use in case the first one does not work. 备用物 (如设备、计划)
Every part of the system has a backup. 这套系统的每个部分都有备件。
3. N-COUNT The backup of a song is the music that is sung or played to accompany the main tune. 伴奏; 伴唱
Sharon also sang backup for Barry Manilow. 莎伦还为巴里·马尼洛唱了伴唱。
4. N-COUNT A backup is the same as a . 后援[美国英语]
返回 backup
backup /ˈbækʌp/ (also back-up) (backups)
剑桥词典
- B2 [ 可数名词：有复数形式的名词 or 不可数或单数名词：没有复数形式的名词 ]
- The paramedic who arrived first at the scene immediately called for backup.
- How can I run the pub on my own all evening without any backup?
- It is essential to have backup when you go diving , in case anything goes wrong .
- If we run out of sandwiches I've got some pizzas in the kitchen as backup.
- My neighbour came along to provide some backup, in case the youths gave me any trouble . 返回 backup
(someone or something that provides ) support or help , or something that you have arranged in case your main plans , equipment , etc. go wrong
后备人员；候补物，替代物，备用物
We're going to need some professional backup for this project . 要完成这项工程我们需要一些专业人员的支持。
The party is going to be outdoors , so we'll need to organize somewhere as a backup in case it rains . 晚会将在露天举行，所以我们需要安排一个备用的地方以防下雨。
Remember, your colleagues are your backup system when things go wrong . 记住，一旦出了差错，你的同事就是你的后援。
[ 可数名词：有复数形式的名词 ]
a copy of information held on a computer that is stored separately from the computer
（文件的）备份
Before we leave work each day , we make a backup of all the records we have entered into the computer that day . 每天下班之前，我们都把当天输入计算机的信息进行备份。
The department's backup disks are all stored in a different building . 该部门的备份磁盘都存放在另一栋大楼内。
[ 可数名词：有复数形式的名词 ] US
a player who plays when the person who usually plays is not available
替补队员
He's a backup for the Dallas Cowboys. 他是达拉斯牛仔队的替补队员。
例句