ㄆㄨˋˊshíㄏㄢˊhán

  1. 比喻沒有恆心做事不能持久孟子·告子》。任何東西總是一曝十寒難怪什麼不會。」

one day's sun, ten days' frost (idiom, from Mencius)​; fig. to work for a bit then skimp, sporadic effort, lack of sticking power, short attention span