动词 proof:

1. make or take a proof of, such as a photographic negative, an etching, or typeset

2. knead to reach proper lightness

3. read for errors

4. activate by mixing with water and sometimes sugar or milk

5. make resistant (to harm)

proofn.证明；证据；校样adj.防 ... 的；耐 ... 的vt.检验；给 ... 做防护措施proofplanen.验电板proof skid防滑proof tree证明树proof coin样币proof coil探查线圈proofed hat硬挺帽proof total总计验证proof gallo标准加仑proof sheetn.校样proof force标准力

1. Is the claim capable of proof?
   这要求能证明是合理的吗?
2. There is positive proof that he did it.
   有确切的证据证明他做了此事。
3. Have you got any proof that you own this bike?
   你有什么证据证明这辆自行车是你的？
4. A credit card is not a valid proof of identity.
   银行发的支票保付卡不是有效的身份证明文件。