Li-Fan Chen says to YSITD https://tw.news.yahoo.com/%E5%B0%8D%E4%B8%96%E7%95%8C%E5%A4%A7%E5%8B%A2%E4%B8%8D%E4%BA%86%E8%A7%A3-%E5%8F%B0%E7%81%A3%E5%90%8D%E5%88%97%E7%84%A1%E7%9F%A5%E5%9C%8B%E5%AE%B6-002100186.html