Translation of "Immortal" in Chinese

Love is immortal.

真愛不渝。

Mortal enemies are immortal friends.

不共戴天的敵人是不朽的朋友。

No one of us is immortal.

没有人是不朽的。

There has never been a savior nor an immortal emperor to rely on.

从来就没有什么救世主， 也不靠神仙皇帝！