王子和公主从此过着幸福的生活.用英语怎么说

ever after后要加短语或从句才成立！单独是不能用的！
From then on,the prince and the princess lived a happy life.

The prince and the princess lived happily together ever after

注意，princess 前面的那个the 不可以省去，如果省去的话意思就变了。

The prince and princess live a happy life from now on.

The prince and princess lived happily ever after.