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
Mary and Arnold are going steady.
玛丽和阿诺德正式成为情侣。
If he doesn't, will you paint it?
如果他不，你会油漆它吗？
They also found something which the X-ray plates did not show: a small wax figure of the god Duamutef.
一个蜡制的杜瓦木特夫神小塑像。