英語の学び場

時事英語キーワード [No.101-No.150] [No.103] life expectancy  (人・動物・物の)平均寿命, 平均余命 ※“life expectation”, “expectation of life”も同義で使われる。 <the length of time that a person or an animal is expected to live; the length of time that something is expected to continue to exist, work, be useful, etc.> ▷ Generally speaking, women have a longer life expectancy than men. →一般的にいうと、女性の方が男性より平均寿命が長い。 ▷ This product has a life expectancy of at least 20 years. →この製品は少なくとも20年はもつ(使える)。