Backup facility
[电] 备份设备, 备用设备
🧩 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
What works?
什么有效！
The early bird catches the worm.
捷足先登。
Many of them have to wait six months for their goods.
许多顾客不得不等上半年才得到所需的商品。