Lifespan
“Lifespan” 是名词,指生物体存活的时间长度。引申义也可指某事物存在、有效或流行的期限。常用于讨论人类寿命、动物寿命、产品使用寿命或技术生命周期等。
- “Some clams have lifespans far longer than those of human beings.” (某些蛤蜊的寿命远长于人类。)
- “The average lifespan in developed countries has increased significantly over the past century.” (过去一个世纪以来,发达国家的人均寿命显著提高。)
- “The lifespan of a typical smartphone is about three to five years.” (典型智能手机的使用寿命约为三到五年。)
由 “life”(生命)+ “span”(跨度、一段时间)复合而成。“Span” 源自古英语,意为”从一端到另一端的距离”,引申为时间跨度。
- 词根: life(生命)+ span(跨度)
- 复合名词,无传统前缀后缀
在西方社会,随着医疗进步和生活方式改善,“lifespan” 与 “life expectancy”(预期寿命)成为公共卫生和人口学的重要指标。延长人类 lifespan 是医学研究的核心目标之一。该词也常用于环保和可持续发展语境,讨论产品设计如何延长使用寿命、减少浪费。
- 固定搭配: “average lifespan” (平均寿命), “extend lifespan” (延长寿命), “within one’s lifespan” (在有生之年)
- 相关词: lifetime(一生,强调整个生命过程)
Life(生命)+ span(跨度)。生命的跨度 = 寿命。Span 如桥的跨度,这里指时间的跨度。
“Scientists studying the bowhead whale were amazed to find one specimen that had lived for over two hundred years. Its remarkable lifespan, longer than any other mammal, offered clues to the secrets of longevity.” (研究弓头鲸的科学家惊讶地发现,有一只标本活了两百多年。它非凡的寿命超过了任何其他哺乳动物,为长寿之谜提供了线索。)