It fit the environment perfectly, once they could make these things actually go twenty-five miles an hour.

它与北美的环境及其契合,人们铺路速度一度可以,达到每小时25英里

耶鲁公开课 - 美国内战与重建课程节选

Eh, I'm sorry, north American energy community, with Canada and Mexico, both of which have oil.

嗯，对不起，北美能源共同体，与美国与加拿大一道，它们都有石油资源。

普林斯顿公开课 - 国际座谈会课程节选