It's only my word against his, I know. So I don't have a leg to stand on.现在是我和他各说各的, 这我知道。所以我的话无法证实。

Once she got up and told the truth about the affair, the other side wouldn't have a leg to stand on.一旦她站出来说出事件的真相, 对方就会站不住脚了。