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
What's the difference? No one will ever find out.
有什么两样？没有人会发现。
It seems he's lucky.
看起来他好像很幸运。
Whether a planet can support life depends on the size and brightness of its star, that is its 'sun'.
一颗行星是否能够维持生命取决于它的恒星——即它的“太阳”——的大小和亮度。