lifespan
US /ˈlaɪf.spæn/
UK /ˈlaɪf.spæn/

名詞
1.
寿命, 耐用年数
the length of time for which a person or animal lives or a thing functions
例:
•
The average lifespan of a domestic cat is about 15 years.
飼い猫の平均寿命は約15年です。
•
LED bulbs have a much longer lifespan than traditional ones.
LED電球は従来の電球よりも寿命がはるかに長いです。
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