Device backup
[计] 设备后援, 设备备份
🧩 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
At 4, but I have to leave by 3:00 to get there on time.
四点，不过我三点必须离开，才能准时到那里。
Great talkers are little doers.
人好说大话，并非实干家。
Camping sites, by contrast, are highly cosmopolitan.
而露营驻地则相反，是高度世界性的。