History has not proven them wrong.

但历史还没有证明他们错了。

Mobile phone-cancer link not proven!

移动电话和癌症的联系没有证明！

The case, I would submit, is not proven.

本人认为此案证据不足。

The jury ruled that the charges were not proven.

陪审团判定指控不成立。

Implementing this type of network has not proven to be easy.

实施网络的这个类型未证明容易。