ㄊㄚˋㄆㄛˋㄊㄧㄝˇtiěㄒㄧㄝˊxié

  1. 穿堅固鞋子走遍天下奔走勞苦四處奔走打聽幾乎踏破鐵鞋終於找到失散多年親人。」

lit. to wear out one's iron shoes (idiom)​, fig. to search high and low