我曾两次访问美国，今年是第三次，前后相隔十多年。若问有什么新鲜印象，老实说，从外观上看，没有。不像在中国，整个大陆就是个大工地，到处在建设。几年不去的城市，再去时就几乎不认识了。我在北京城北住了十多年，几个月不去东城、西城或南城，也常常惊讶于变化之大。其? I have visited the United States twice. This is the third time this year and has been separated by more than a decade. If you ask any fresh impression, to be honest, from an appearance point of view, no. Unlike in China, the entire continent is a large construction site, and construction is everywhere. Cities that haven’t been in a few years don’t even know when they go. I have lived in the north of Beijing for more than a decade. I have not been to Dongcheng, Xicheng or Nancheng for a few months. I have often been surprised at the great changes. its?