129,481KM-2KM=129,479KM
https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://zhuanlan.zhihu.com/p/649999743&
Bal b/f TW$33+TW$3=TW$36 Bal c/f
https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=http://www.takungpao.com.hk/news/232109/20