Why does cream go bad faster than butter? Some researchers think they have the answer, and it comes down to the structure of the

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问题 Why does cream go bad faster than butter? Some researchers think they have the answer, and it comes down to the structure of the food, not its chemical composition—a finding that could help rid some processed foods of chemical preservatives.

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答案为什么奶酪会比黄油更容易变质?一些研究者认为他们已经找到了答案,并将其归结为食物的构成,不是化学成分——这一发现能使有些加工食品不再使用化学防腐剂。

解析 句子主干....researchers think…and it comes down…;破折号后面的部分是answer的同位语;that could help…是finding的定语从句。
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