Can you prove it to me ? 你能向我证实吗?
I shall prove to you that the witness is not speaking the truth. 我将向你证明,证人说的不是真话。
The task proved ( to be) more difficult than we'd thought. 这项任务原来比我们预想的难得多。
The will has to be proved before we can inherit. 遗嘱要先认证,然後我们才能继承遗产。