-----------------------------------
寿命, じゅみょう
1. lifespan, life, lifetime
2. life (of a battery, lightbulb, etc.), service life, end of an object's (useful) life
寿命;(电池、灯泡等)使用寿命
-----------------------------------
ない, 無い
1. nonexistent, not being (there)
2. unowned, not had, unpossessed
3. unique
4. not, impossible, won't happen
5. not
6. to not be, to have not
tbd