因為錯過一班巴士，叫我等下一班要18分鐘，所以
16.799544,99.034132
https://tw.news.yahoo.com/%E4%B8%AD%E5%9C%8B%E7%A8%B120%E5%A4%9A%E5%90%8D%E5%9B%B0%E6%9F%AC%E5%8F%B0%E4%BA%BA%E6%B1%82%E5%8A
25,548KM-4KM=25,544KM