也要知自己目的，起碼為本群組省錢，改善經濟
https://tw.news.yahoo.com/%E8%8F%AF%E7%A2%A9%E9%AB%98%E5%B1%A4%E7%95%B0%E5%8B%95-%E9%9B%86%E5%9C%98%E7%B8%BD%E8%A3%81%E6%9B%
https://www.chinatimes.com/realtimenews/20190308003969-260402
https://zh.m.wikipedia.org/wiki/%E8%8F%AF%E5%9F%8E%E9%80%A3%E7%92%B0%E6%AE%BA%E4%BA%BA%E6%A1%88
https://www.cmmedia.com.tw/home/articles/4016