ㄅㄧˋㄑㄧˊㄖㄨㄟˋruìㄑㄧˋㄐㄧˊㄑㄧˊㄉㄨㄛˋduòㄍㄨㄟguī

  1. 避開敵軍旺盛鬥志鬆懈返回攻擊孫子·》:善用避其銳氣,擊其惰歸。」

avoid the enemy when he is fresh and strike him when he is tired and withdraws (idiom)​