如果你站在月球上往地球上看,你可以用肉眼看到地球上惟一的建筑物就是中国的长城。长城建于公元前3世纪。如今长城依然屹立在那儿,它提醒人们现代技术要大大地归功于古代建筑工人和工程师们。他们利用大自然的力量,独出心裁地设计出了一座座壮丽辉煌的建筑物、桥梁和隧道,令后人惊讶。更重要的是,他们使现代工程师们深信,只要通过努力世界一 If you stand on the moon and look to the earth, you can see with the naked eye that the only building on the earth is the Great Wall of China. The Great Wall was built in the 3rd century BC. Now that the Great Wall still stands there, it reminds people that modern technology should be greatly attributed to ancient construction workers and engineers. They harnessed the power of nature and created a splendid building, bridges, and tunnels ingeniously, which surprised later generations. What’s more, they make modern engineers convinced that as long as they strive through the world