Definition
Refers to the ease of understanding what actions could have been taken to prevent a negative outcome, but only after the event has already occurred.
事后诸葛
Looking back now, I should have sold my stocks earlier; oh well, it’s easy to be wise after the event.
现在回想起来，我应该早点卖掉股票；唉，事后诸葛亮总是容易的。
We all say we could have done better, but it's easy to be wise after the event.
我们都说我们可以做得更好，但事后诸葛亮总是容易的。
She realizes now that she should have called the police, but it’s always easy to be wise after the event.
她现在意识到她应该报警，但事后诸葛亮总是容易的。