20世纪初,湖南巡抚邵友濂临终时给子孙留下遗训:“三十四年之内,必然要发生世界大战,中国将是被各国军队分割混战的战场,全国任何地方都不安全,不能照以往的小乱避城、大乱避乡的办法。要避难只有到美国最安全。”三十多年后,第二次世界大战爆发,战火遍及五大洲四大洋。相对而言,美国本土独处大洋彼岸,由于地理环境的优势,幸免战火大规模殃及而最为安全。 At the beginning of the 20th century, Hunan governor Shao Youtian left his deathbed at the deathbed: “Within thirty-four years, world war will inevitably take place. China will be the battlefield where the armed forces of various countries divide the melee. Any place in the country is not safe and can not be shined. In the past, it was only a matter of going to the United States to find refuge in the past. ”After more than 30 years, the Second World War broke out and the fighting spread across four continents and four oceans. In contrast, the United States is the only country on the other side of the oceans that is most safer to survive the massive devastation brought by the war because of its geographical advantages.