So why in the world, you might ask, would anybody be willing to stand out on a street corner selling drugs for $3.50 an hour, with a 25 percent chance of dying over the next four years?
你可能要问，为什么会有人愿意 站在街角，为了一小时赚3块5而贩卖毒品， 同时冒着在未来四年内25%的死亡概率？