Άνοιγμα https://m.hkej.com/landing/mobarticle2/id/3601724/%E6%98%A0%E7%81%A3%E5%9C%92%E9%9B%99%E8%99%9F%E6%B4%8B%E6%88%BF%E8%9D%95498%E8%90%AC%E6%88%90%E4%BA%A4