Built bridges and roads and automobiles, so we can get from one place to another relatively quickly because of that.

桥梁和道路的修建以及汽车的出现,使我们能够快速地,从一个地方到另一个地方

耶鲁公开课 - 生物医学工程探索课程节选

Built bridges and roads and automobiles, so we can get from one place to another relatively quickly because of that.

桥梁和道路的修建以及汽车的出现,使我们能够快速地,从一个地方到另一个地方

耶鲁公开课 - 生物医学工程探索课程节选