Of all the earthquakes in European history, the earthquake, which destrQyed Lisbon in 1755, is perhaps the most famous.
显然这个句子是不对的,加了逗号的which变成了非限制性定语从句。
但是曼哈顿给的更改建议是 WE MUST 去掉逗号并且 把which 改成 that
去掉逗号是肯定的,但是which有必要更改成that吗。我在网上查了一下which也可以引导限制性定语从句,那为什么一定要把which改成that呢?