https://youtu.be/Jdsx6qJ6HDo?si=yD9bXDq11-8LQhia
省到水電：Bal b/f TW$27,010+TW$365=TW$27,375 Bal c/f
https://youtu.be/TT4_7O8QuHU?si=Mfw8guDPhWqwZ_pW
https://hk.on.cc/hk/bkn/cnt/news/20200902/mobile/bkn-20200902141610954-0902_00822_001.html
https://youtu.be/cebFgWoPOEY?si=7Jw5M9ZcJNWAi0OM