英 [ɪˌfeməˈrælɪti] 美 [ɪˌfeməˈrælətɪ]
n. 朝生暮死，短命的事物；无常的事物
复数ephemeralities
the property of lasting for a very short time
同义词： ephemeralness / fleetingness
无常的事物
国内的乐队目前我最喜欢Ephemerality（朝生暮死），他们保持着相对完整的阵容、旺盛的生命力和越来越成熟的表现！他们的演出我看过不下十次。
... 无常的fugaciousfungalshort-lived 无常的事物ephemerality 无常地mutably ...
你可能会以为，Snapchat的使命只是给大众带来“转瞬即逝”（ephemerality）的信息交流方式，但这种方式只是斯皮格尔一直在酝酿的一个更大想法的冰山一角而已。
二、短暂性(Ephemerality)与内容安全
朝生暮死，短命的事物；无常的事物
However, its negative effect on China's early movies was also noticeable, which led to its ephemerality.
但神怪片对早期中国电影所起的负面作用也是显而易见的，这决定了它只能昙花一现。
In particular, substitution is often employed to facilitate the audience's understanding, owing to ephemerality of a stage production.
变形是译者在戏剧翻译中经常采用的方法，因为人物的台词转瞬即逝，保留原意象有时会妨碍观众的理解。
Falling water is a study in opposites—motion and stability, change and permanence, power and ephemerality—that make the human condition a paradox of welcome adventure and anxious uncertainty.
落泉别墅体现了动与静、变幻与永恒、强劲与易逝的对立，使人生处于矛盾之中，兴致勃勃的进取与忧虑不安。
In Japanese art and poetry, cherry blossoms have also served as metaphors for "the ephemerality of life", said James Ulak, the senior curator of Japanese art at Washington's Freer and Sackler art galleries, in an interview with NPR.