lifespanKK [ˋlaɪfˏspæn] /ˈlaɪfˌspæn/发音名词1寿命、生命期限The average lifespan in the country has risen by ten years.该国的平均寿命已经延长了十年。2使用年限、耐用年限Regular maintenance can extend the lifespan of your washing machine.定期保养可以延长洗衣机的使用年限。3存续期间、持续时间Most online trends have a very short lifespan these days.现在大多数网路潮流的持续时间都很短。用这个字练口说→