disappearing quickly from sight or memory 瞬息即逝的;迅速遗忘的 Talk is evanescent, writing leaves footprints. 谈话转瞬即逝,写作留下脚印。
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’.