translation.en: Firms produce goods for households -- that's us -- and provide us with incomes, and that's even better, because we can spend those incomes on more goods and services.
translation.zh: 公司为家庭生产商品--也就是我们-- 并且为我们提供收入， 这更好，因为我们可以消费这些收入 在更多的商品和服务上。