例： 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居住的证明，例如一张得克萨斯州的身份证。
例： This is not necessarily proof that he is wrong.
这未必是他错了的证明。
例： There is no conclusive proof of the Milancovitch theory.
米兰科维奇理论没有结论性的证据。
例： Economists have been concerned with establishing proofs for their arguments.
经济学家们在忙着为自己的论点找证据。