His strange habit makes sense when you consider that he's an environmental scientist who studies how to reduce litter, including things that fall off garbage trucks as they drive down the road.
他是一位研究如何减少垃圾的环境科学家，其中包括研究减少垃圾车行驶时掉下来的东西，当你考虑到这一点，自然就能明白他为什么会养成这种奇怪的习惯了。
"If there's a road with several speed humps then I'll be off by the time we've crossed the last one," she confessed. "I don't drive very often."
“如果路上有好几个减速带，那我就在通过最后一个之前下车，”她坦然地说道，“我不经常开车。”
Whereas I suspect over at General Motors the marketing people are telling the designers, "Most people who buy SUVs do it to seem manly, not to drive off-road."
但我怀疑通用汽车公司市场部的人是这样对设计师说的：“大部分人买SUV是为了看起来像男子汉，不是为了越野。”
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