◎滄海桑田cānghǎi-sāngtián
[the swift changes of the world;great changes are seen in the course of time;the evanescence of the worldly affairs is like the sea turned into a mulberry field (orchid)] 大海變成了種桑樹的田地，種桑樹的田地變成了大海。比喻世事多變，人生無常;或喻世事變化的巨大迅速——略稱滄桑
山河改轉(zhuǎn)，滄海桑田