ev·a·nes·cent
adjective/ˌevəˈnesnt/, /ˌiːvəˈnesnt/
/ˌevəˈnesnt/, /ˌiːvəˈnesnt/
(literary)- disappearing quickly from sight or memory
瞬息即逝的；迅速遗忘的 - Talk is evanescent, writing leaves footprints.
言语转瞬即逝，书写留下足迹。
Word Originearly 18th cent. (in the sense ‘almost imperceptible’): from Latin evanescent- ‘disappearing’, from the verb evanescere, from e- (variant of ex-) ‘out of’ + vanus ‘empty’. - Talk is evanescent, writing leaves footprints.