Backing copy
[计] 备用拷贝
🧩 词语组成解析
backing
[['bækiŋ]]
n. 后退, 衬背, 后援, 支持者\\n[化] 衬垫
copy
['kɑpi]
n. 复制品;一份;（报刊等的）稿件;准备排印的书面材料;
vt.& vi. 复制;抄写;容许复制的;
vt. 模仿;仿造…的样式或图案;抄写;复制;
🗣️ 情景例句
I did.
是的。
Wisdom is a good purchase though we pay dear for it .
为了求知识，代价虽高也值得。
In the letter he was asked to call at the station.
要他到警察局去一趟。