Bds
abbr. 用硬纸板作封面（bound in boards）
🗣️ 情景例句
There is not a shadow of a doubt that they did it.
毫无疑问，是他们干的。
A clear conscience is a sure card.
光明磊落，胜券在握。
From time to time, I notice that he puts a piece of meat down his trousers just before he leaves the factory.
我经常看到，他在快要离厂前把一块肉藏在裤子里。