资料来源 : pyDict

自卫本能

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Self-preservation \Self`-pres`er*va"tion\, n.
   The preservation of one's self from destruction or injury.

资料来源 : WordNet®

self-preservation
     n : preservation of yourself from harm; a natural or instinctive
         tendency