https://www.google.com/amp/s/olo-mag.tumblr.com/post/175838142247/%25E4%25B8%258D%25E4%25B8%2580%25E6%25A8%25A3%25E7%259A%25
21.933459,97.489456
21.912222,97.497963
24,076KM-3KM=24,073KM
https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://dca.moi.gov.tw/chaspx/Faq_Detail.a