For example, if you're living in a society that was designed for motor vehicles, walking isn't always a good time.

例如， 如果你生活在一个为机动车设计的社会中，步行并不总是一个好时机。

They sparked my writing a paper at law school on unsafe automotive design and the need for motor vehicle safety laws.

他们激发了我在法学院写一篇关于不安全的汽车设计和机动车安全法的必要性的论文。