1、Iraq was Iran's mortal enemy.

2、You really have a mortal enemy.

3、Hurons, this is your mortal enemy.

4、Never think of Satan as anything less than your mortal enemy.

5、He still believes that labor has to be the natural, mortal enemy of the manager.

6、And now I am living in the US, the land of my so-called mortal enemy.

7、Eventually he arranged for Flamsteed's work to be seized and prepared for publication by Flamsteed's mortal enemy, Edmond Halley.

8、"A man who holds a sword in his hand, and sees a mortal enemy within reach of that sword, and does not fight, is a coward!

9、Ever since then, Guo viewed flies as his mortal enemy and decided to devote the rest of his life to the eradication of the bothersome insects.