"We need proof, sir." Another pause. Then, "Very well."

“我们需要证据，先生。” 又顿了一下。然后说道，“好吧。”

《柯林斯英汉双解大词典》

Once developed countries have shown demonstrable proof of their seriousness then India can think of going to next stage.

一旦发达国家出示能证明其危险性的证据，那么，印度可以考虑走向下一个阶段。

youdao

Should anyone else ever gain access to the private key, they can then use it as "proof" of identity and act as you.

其他任何人只要能够访问该私钥，他接下来就可以用它来“证明”身份，并以您的名义进行活动。

youdao

But if a farmer is given the opportunity to access and then makes a decision to buy, I think that's the real proof that this is something that's beneficial to them."

VOA: standard.2010.08.09

The common denominator for gut plays is patience and then some proof that the prevailing consensus was myopic.

FORBES: My Gut Play Basket Is Full

What this means is rather than trying to catch every cheater you randomly sample for cheating and if you find incontrovertible proof then you impose a punishment so viciously harsh that fear of it deters all possible cheaters.

FORBES: The Sins of the Father: Dishonor, Disgrace and Boiling Cheaters in Oil

The drink was strained into a separate, identical glass, then checked for temperature, proof, and weight.

FORBES: Why the Science of 'Shaken, not Stirred' Isn't There Yet