Backup system
[电] 后备系统
🧩 词语组成解析
backup
['bækˌʌp]
n. 支持，后援;阻塞;<计>备份文件;[乐]伴奏;
adj. 备用的，后补的;支持性的;伴奏的;
🗣️ 情景例句
and giving up your free time.
放弃了你的闲暇时间。
The examiner was looking for imaginative answers.
主考人希望找到具有丰富想象力的答卷。
I would like to express to all of you here our sincere welcome.
让我向在座诸位致以最真挚的欢迎。’