ˋshìㄊㄨˊㄌㄠˇlǎoㄇㄚˇ

  1. 經驗豐富參見老馬識途兒女英雄傳·第一》:識途老馬不信。」迷路羔羊

lit. an old horse knows the way home (idiom)​; fig. in difficulty, trust an experience colleague