The proof of the pudding are those horrible eggs.

那些糟糕的鸡蛋就是最好的证明。

People back then said it this way: the proof of the pudding is in the eating.

the proof of the pudding is in the eating（事实胜于雄辩）。

And so I think the proof of the pudding in these new sanctions will be what does Russia come back with?

我在想，这些新的制裁措施的证据会是俄罗斯的反制基础吗？

'Well, the proof of the pudding is in the eating.

'嗯，布丁的证明在于吃。