1.  lifetime
2.  life span

• 1. 寿命: Lifespan | lifetime | Life | longevity
• 2. 平均寿命: life expectancy | Average life | mean life | mean lifetime
• 3. 使用寿命: service life | Life Time | useful life | Lifespan

更多释义

• 1.15年的寿命对狗来说并非罕见。
  A 15-year lifespan is not uncommon for a dog.
  dict.yoduao.com
• 2.许多笼中鸟比野外同类鸟的寿命长。
  Many caged birds live longer than their fellows in the wild.
  dict.yoduao.com
• 3.他们假定塑料容器的寿命为500年。
  They postulated a 500-year lifespan for a plastic container.
  dict.yoduao.com

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