Faeces are food that has been processed by the human digestive system to extract as much useful energy as possible.

人类粪便是已经被人类消化体统为了最大化汲取能量而处理过了的食物。

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However, it is plausible that food processing, including cooking, played a major part in the changes in the human digestive system compared with the other great apes.

但是，我们有理由认为，和其他类人猿相比，食物加工，包括烹饪在内，对人体消化系统的变化起了重要作用。

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Bioactive peptides have special physio - logical activities on the regulation of human immune system or digestive system.

生物活性肽对人体的免疫系统和消化系统有调节作用，具有特殊的生理功能。

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Now, do any of these facts about the digestive system ? make it inappropriate to kiss another human being?

现在，这些关于消化系统的事实有没有,让亲吻另一个人类变得不合适？

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If your roommate comes in and starts trying to tell you facts about the human digestive system, " you say, "Not now."

如果你的室友跑过来开始试图,告诉你有关人类消化系统的事实，你说“现在别说“

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Delvoye is no stranger to controversy: he is perhaps best known for his work Cloaca, an installation composed of a large machine reproducing the effects of the human digestive system to create, in essence, industrial faecal matter .

BBC: Controversy at the classical Louvre