1. We might say that justice has been done when a man´s innocence or guilt has been proved beyond doubt.
    当某人被证据确凿地证明无罪的时候，我们也许会说正义得到了伸张。

2. There is no doubt about his innocence.
    他完全是无辜的。

3. The friends of the prisoner were sure of his innocence.
    犯人的朋友们肯定他是无罪的。