Well, one fact that we can take advantage of, I think a fact you'll all agree is true, is that time goes forward, not backward. Right? The cause has to come before the effect.
好吧，我们可以利用一个事实，我认为这个事实 大家都同意它的存在，这就是时间总是向前的，而不是 倒退的。对吧？原因一定出现在结果之前。