translation.en: What we do is you make up a big experimental batch of Pepsi, at every degree of sweetness -- eight percent, 8.1, 8.2, 8.3, all the way up to 12 -- and we try this out with thousands of people, and we plot the results on a curve, and we take the most popular concentration, right? Really simple.
translation.zh: 我们只要做出一系列不同甜度的百事， 8%，8.1%，8.2,%，8.3%， 一直到 12% 为止。然后我们让几千人来品尝， 将结果画成一个曲线图， 最后取最多人喜欢的甜度。对吧？简单得很。