translation.en: But in fact, to decide whether a Big Mac is worth 25 dollars requires that you ask one, and only one question, which is: What else can I do with 25 dollars?
translation.zh: 然而，决定一个“巨无霸” 是否值25美元的前提 是你要问且只问一个问题： 我还能用这25美元做什么？