As a result of the Freedom Rides, they had integrated interstate transportation, at great cost to the volunteers who rode those buses.

作为自由乘车运动的结果，州际间的交通被大大集中，不过这使那些乘坐巴士的志愿者们付出了极大的代价。

耶鲁公开课 - 1945年后的美国小说课程节选

They wanted the roads for their Army, just like the US Interstate system was originally created in case the Army needed to be moved across the country very quickly if the Soviets attacked.

只关注军队用路，就好像美国州际公路系统,原本是为了苏联攻击时,陆军能快速穿越国家而建的。

耶鲁公开课 - 新约课程节选