今天我们要学的词是 isolated. Isolated 形容词，意思是孤立的，单独的。Travel agencies estimate as many as 6,000 Westerners visit North Korea each year, one of the most isolated countries in the world. 旅行社估计，每年有多达六千个西方游客到世界上最封闭的国家之一朝鲜去游览。Dr Thomas Frieden, director of the Centers for Disease Control and Prevention, admitted that recent safety incidents were not isolated mistakes. 美国疾病控制与预防中心负责人托马斯.弗雷登承认，最近发生的安全事件不是孤立性错误。好的，今天我们学习的词是 isolated, isolated, isolated...