proof既可以是可数名词又可以是不可数名词。proof主要用作名词、动词和形容词，作名词时中文含义是：证据；证明；检验。作动词时中文含义是：给(织物等)做防护处理。作形容词时中文含义是：能抵御；能防范；可防护；防…的；抗…的。
一、proof词性变化
第三人称单数：proofs
复数：proofs
现在分词：proofing
过去式：proofed
过去分词：proofed
二、proof词语搭配
convincing proof令人信服的证据
final proof最终的证据
living proof活生生的例证
proof positive确凿证据
have proof有证据
need proof需要证据
offer proof提供证据
provide proof拿出证据
require proof要求证据
show proof出示证据
三、proof双语例句
1.I'll need rock solid proof
我需要确凿的证据。
2.This is not necessarily proof that he is wrong
这不一定就证明他是错的。
3.Now what we need is definite proof that we can lay before the prime minister.
如今，我们需要的是可呈交给首相的确凿证据。
4.We need to back that suspicion up with statistical proof.
我们需要用统计数据来证实那一猜测。
5.The buyer has to sign a delivery note as proof of receipt.
购买者必须签收送货单表明货已收到。
6.The sea wall was not proof against the strength of the waves.
防波堤挡不住海浪的力量。
