In my opinion-- and as such, it is a ex post facto law.

所见 法律不能追溯之前的行为。

This is the exact definition of ex post facto law.

追溯法令就是这个意思。

So anxious is a young conscience to discover a palliative, that the ex post facto nature of a reason is of no account in excluding it.

一颗年轻的良心此急切地想找到一种缓和，以至于一个原因的事后性质在排除它方面没有任何意义。

I must call to your attention the newly passed Environmental Impact and Sustainability Assurance Act, a statute that, as you know, went into effect without any ex post facto provisions in place.

必须提请你们注意新近通过的《环境影响和可持续性保法》，你们所知，该法规在生效时没有任何事后规定。

What he was about to say, he told me, was an " ex post facto rationalisation" — a deduction, from the vantage of the present, of what he might have been thinking at the time of the murders.

他告诉，他要说的是“事后合理化”——从现在的有利条件出发，推断他在谋杀案发生时可能在想什么。