If an American group sets out to build a railroad, they try to find the best engineer, the best contractors, decide from where to where the railroad should go, build the team and set off.

• 如果美国人开始要盖铁路，他们会努力找最棒的工程师、最好的承包商，决定铁路的起点与终点，组成团队，然后开始。