In proof of this theory, I shall make certain studies.

为了证明这一理论，我将进行某些研究。

youdao

You have to have proof of residence in the state of Texas, such as a Texas ID card.

你必须有在德克萨斯州的居住证明，例如一张得克萨斯州的身份证。

《柯林斯英汉双解大词典》

She even texted pictures of her and her husband eating there in 2017 as proof.

她甚至发来了她和丈夫2017年在那里吃饭的照片作为证据。

youdao

Some people saw proof of that in the fact that two of her children and her husband died before her.

VOA: special.2009.09.21

Of course, that's not the useful application for it, it's more of a proof of principle, but it does show you that you can put it in for studies in any organisms.

当然，这不是很有用的应用，这仅仅是一个原理上的证明，但它告诉你你可以把它,放到研究任何生物体中。

麻省理工公开课 - 化学原理课程节选

Because the Mycenaean centers all reveal for that stretch of time that they're scared. The proof of it comes from strengthening their already quite strong walls in almost all the sites that we see, and also--this is a very important fact.

因为在迈锡尼文明的中心,有迹象表明在一段时期,他们受到了威胁,这样说的证据是,我们发现的几乎所有的遗迹,都在本就很坚固的城墙上继续加固,而且,这是一个很重要的史实

耶鲁公开课 - 古希腊历史简介课程节选

Thus, by pursuing a RICO charge, the government has made up for the seemingly slow pace of its investigation, and has enabled itself to bring in proof of all alleged acts of extortion and kickbacks, rather than just those that occurred after the fall of 2007.

FORBES: Down The RICO Rabbit Hole: John Reynolds And The Hospital For Special Surgery

It's not as if there weren't plenty of proof in plenty of puddings.

FORBES: International Wine of Mystery

Fifty-two suspected members of the radical Islamic group, Salafia Jihadia, appeared in a cage of bullet-proof glass in the criminal chamber of Casablanca's appeals court.

BBC: Casablanca suspects go on trial