But medium today is not what medium used to be, and because of that people really make a lot of errors in understanding how much a portion is.

但现在的中包薯条和过去的大小不同,因为这,人们理解什么是每日摄入量时,就犯了很多错误

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So can be changed slightly, depending on tense, past, present or future as well as whether or not you want to ask a question.

因此这个句型要根据不同的时态，如过去时、现在时和将来时，作出一点调整；另外也会根据是否是问句而略有不同。

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