This constitutes his fatal flaw, or hamartia.

这就造成了他的致命缺陷。

Tybalt's hotheadedness and severe hatred of the Montagues is what we literature people call his hamartia, or what causes his downfall.

伯尔特的顽固以及他对蒙太古家族的严重仇恨就是我们文学人所说的悲剧性弱点，或者是导致他垮下的原因。