【稍纵即逝】〖sho zòng jí shì〗[transient; fleeting]

稍须蹉跎六十年，

纵横驰骋骑游览。

即席赋诗万四千，

逝妻遗愿得偿还。

稍微一放松就消失了。形容时间或机会等很容易过去。Slightly as soon as relax it disappears. Describe time or opportunity etc, very easy to past.同：光阴似箭、昙花一现。反：旷日持久、遥遥无期。