美国如何塑造世界：250年的权力与政策
How the US shaped the world: 250 years of power and policies
摘要
美国250年前宣布脱离英国独立。一篇专题报道审视了此后美国与其他国家的关系及其全球形象的演变。
预览
The United States declared its independence from Britain 250 years ago. Here's how the US's relations with other nations — and its global image — have changed since.