Graduated means teenagers start with restrictions like on night driving and numbers of passengers.

VOA: special.2010.07.01

It's interesting to think about what's driving that and what it means for our health and for international politics.

到底是什么导致了这些变化以及,这对我们的健康和国际政治意味着什么,这些都值得我们思考

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选