ㄙㄢsānˊshíㄋㄧㄢˊniánㄏㄜˊㄉㄨㄥdōngㄙㄢsānˊshíㄋㄧㄢˊniánㄏㄜˊ西ㄒㄧ

  1. 諺語)​盛衰無常儒林外史·四六》:老爹大先生三十年河東,三十年河西」!府上何等氣勢親眼看見。』」

the river flows thirty years to the East, thirty years to the West (proverb)​, change is the only constant