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
Eight pounds six, just like me.
八磅六， 跟我一样。
I took 6 boxes of biscuits.
我拿了六盒饼干。
Yes, that's right.
是，很对。