台湾籍旅美老师今天交给我们的句子是：

We feel regret when we think we are responsible for a decision that came out badly, but almost came out well.
如果事情明明可以变好却搞砸了，我们会认为应该为做出这样的决定而造成的后果负责，所以后悔便油然而生了 。