proof
🇺🇸
/pruːf/
🇬🇧
/pruːf/
Evidence that shows something is true
The photo is proof that he was there.
这张照片是他当时在场的证据。
The act of testing if something is true
We need proof that this idea works.
我们需要证明这个想法有效的证据。
A method to show something is correct
Math proof shows the answer is right.
数学证明显示答案是正确的。
A test copy for fixing mistakes
She read the proof before printing the book.
她在印刷书籍前阅读了校样。
A measure of alcohol strength
This whiskey is 80 proof.
这款威士忌是80度的。
Able to resist damage or harm
The roof is rain proof.
这个屋顶是防雨的。
Protected against something
Use a fire proof box for important papers.
使用防火盒存放重要文件。
To treat something to protect it
They proof the tent to keep water out.
他们对帐篷进行防水处理以防进水。
To make a test copy for corrections
The printer will proof the document first.
打印机会先对文档进行校对。