proof的复数形式：proofs。
proof的复数形式是直接加s，即proofs。proof可作名词、及物动词和形容词三种词性，基本含义有“证明”、“检验”、“求证”、“能防范”、“防什么的”、“给织物等做防护处理”、“使防水”、“印什么的校样”。
proof的短语搭配：
1、proof of concept
概念验证；概念证明
2、bullet-proof vest
防弹衣；防弹背心
3、proof theory
证明论
4、water proof
防水的；不透水的
5、explosion proof
防爆
proof的双语例句
1、Him with proof of his criminal activities, he knew that he had to tell the truth.
当他们拿出他的犯罪证据与他当面对质时，他知道他不得不说真话了。
2、These are vandal proof and they come with a locking mechanism.
这是野蛮的证据，他们来到了锁机制。
3、having a list of ancestors as proof of being a purebred animal
有血统表证明是纯种动物。
