昙花一现
last briefly;be a flash in the pan;remain on the scene for only a brief period;vanish as soon as it appears
~的人物a transient figure;a person of ephemeral importance
昙花一现tán huā yī xiàn
昙花:开放时间极短的一种花。比喻事物难得出现;也比喻事物刚一出现就很快地消逝。last briefly like the morning dew of a day, written in water, flower briefly as the night blooming cereus, be a flash in the pan