Li-Fan Chen says to YSITD https://tw.news.yahoo.com/%E9%82%84%E6%B2%92%E6%8F%9B%E5%AD%A3%E7%A9%BF%E9%95%B7%E8%A4%B2%E6%9C%83%E8%A2%AB%E8%A8%98%E9%81%8E-%E5%AE%B6%E9%95%B7%E6%8A%95%E8%A8%B4%E8%AD%B0%E5%93%A1-030508806.html