You'd have to know what pigments he used, in other words, what ingredients he used to make different colors of paint, because the ingredients used in paints and binding agents have changed over time.
你要知道他使用了什么颜料,换句话说,他用了什么原料来制造不同颜色的油漆,因为油漆中使用的原料和结合剂都随着时间的推移而改变。
But there are stores like Dunkin' Donuts and Krispy Kreme that make many different kinds of donuts.
VOA: special.2010.04.12
In fact, different people might make different choices about how much risk they're willing to bear to get a higher expected return.
事实上,为了获得高的预期收益率,人们愿意承受的风险,也会不同。
Some of this can be done if consumers make different choices in what they eat, but some can be silent changes too, so Frito-Lay taking the Trans fats out of their products and switching them with a healthier fat is a silent change that could have a positive impact on public health.
有些只要消费者选择其它的食物即可做到,但也有些变化是悄无声息的,菲多利将其产品中的反式脂肪,替换成更健康的脂肪就并未声张,这对大众健康有着积极的影响
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