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
I don't know how to thank you, Susan.
我不知道如何谢你， Susan。
To err is human.
人无完人。
It was a Sunday in May. My brother and I had decided to go off for a long walk while we were staying with my grandparents in the French countryside.
5月的一个星期天，我和弟弟决定去远足。当时我们住在法国乡下的祖父母家中。