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
Oh, sorry. There must be some mistake.
哦，抱歉，一定是弄错了。
Ouch! That hurts.
好痛呦！会受伤哩！
Macaroni has been grown in this area for over six hundred years.
通心粉在这个地区已经种植了600多年了。