Even a hundred mouths cannot absolve guilt
百喙莫辩
absolve sb. fonl guilt or blame
开脱罪责
Acquit oneself of a promise
履行诺言
Can hardly absolve oneself of all blame
难辞其咎
absolve sb. from responsibility
为某人解脱
acquit the accused
宣告被告无罪
absolve sb. from guilt or blame
开脱罪责
acquit sb. of a crime
宣判无罪