a.

1. 会死的；死的；临死的
   All things that live are mortal.

   所有生物都会死的。

2. 人的，凡人的[B]
   It's beyond mortal power to bring a dead man back to life.

   要死人复活非凡人所能为。

3. 致死的，致命的
   He received a mortal blow.

   他受到了致命的一击。

4. 你死我活的，不共戴天的[B]
   He is my mortal enemy.

   他是我不共戴天的敌人。

5. 极大的，极度的[B]
   She lives in mortal terror of her husband's anger.

   她极度害怕她丈夫发脾气。

n.

1. 人，凡人[C][P1]
   No mortal could have survived the fire.

   没有人经历这场火灾而能生还。

adj.

1. (of a living creature) subject to death.
2. causing or liable to cause death; fatal.
   ▸(of conflict or an enemy) admitting no reconciliation.
3. (of a feeling, especially fear) very intense.
4. informal conceivable or imaginable:
   every mortal thing.
   ▸very great:

   a mortal hurry.
5. Christian Theology  denoting a grave sin that is regarded as depriving the soul of divine grace. Often contrasted with venial.

n.

1. a mortal being.
2. humorous a person contrasted with those of higher status or ability.