The challenge to the vendors is straightforward: make cheap, healthy food that appeals to the world’s most finicky eaters, grade-school kids. To do that, the first question to answer is what makes school food so bad.
销售商的挑战是直观的：做出廉价健康的食品吸引世界上最挑剔的食用者——学校儿童。为了做到这一点，第一个需要回答的问题是什么让校园餐质量如此低劣。