You may know from reading food labels that these ingredients in any food label are listed in order of how much there is in the food itself, so sugar comes right after peanuts.

看看食品标签你就会知道,食物配料都列在食品标签上,以它在食品中的含量多少的顺序排列,所以糖的含量仅次于花生

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

For example, you can bring people into a lab or something like that and show them food and say, well can you estimate how many calories are in this, and you actually know how many calories are in it, and you get the error.

比方说,带一些实验对象进入实验室,向他们展示一些食物并问,你们能估计这些食物含有多少卡路里吗,人们认为自己对卡路里含量心里有谱,但他们错了

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Okay, right, so if you're actually making food and you're creating some of a recipe then it's very difficult to know exactly the portions that go in when you eat the final food product that comes from it, so that's right. How many of you--go ahead.

对的,所以如果你自己做饭,你会有自己的一套食谱,你很难了解最后的成品中,原成分的精确含量了,所以就是那样,有多少人,你说

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Three ounces of meat might have x calories or it might have y calories depending on what the meat is, how much salad dressing gets thrown on a salad, how much of this gets or that gets put in a food will vary its calorie content a lot.

三盎司的肉也许有x卡路里,也许有y卡路里,取决于肉的种类,色拉中放了多少色拉酱,在食物中有多少这个或那个,也会导致卡路里含量的差异

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选