Back-ups
(back-up 的复数) [计] 后援; 备份\\n[医] 后盾(在大气中高压电流所通过距离)
🧩 词语组成解析
back
[bæk]
n. 背，背部;背面，反面;后面，后部;（椅子等的）靠背;
vt. 使后退;支持;加背书于;下赌注于;
vi. 后退;倒退;
adj. 背部的;后面的;以前的;拖欠的;
adv. 以前;向后地;
不间断电源\\n[计] 不间断电源
🗣️ 情景例句
If I've ever been sure of anything, I'm sure of this; your team is going to lose the same game on Saturday.
这一次我十分肯定：你们队星期六的比赛会输。
Lies have short legs.
谎言是站不住脚的。
I hope to conclude some business with you.
我希望能与贵公司建立贸易关系。