当血液被消化时，它会通过一个为适应排除过量营养素而形成的消化道。

When ingested, the blood goes through a tract that's adapted for extracting nutrients.

youdao

肉类的蛋白质不易消化的，因为肉类的蛋白质需要大量消化酵素消化，未消化的肉质会留残在肠内净化，而引发有毒物质形成。

Meat protein is difficult to digest and requires a lot of digestive enzymes. Undigested meat remaining in the intestines becomes putrefied and leads to more toxic buildup.

youdao

肉类的蛋白质不易消化的，因为肉类的蛋白质需要大量消化酵素消化，未消化的肉质会留残在肠内净化，而引发有毒物质形成。

Meat protein is difficult to digest andrequires a lot of digestive enzymes . Undigested meat remaining in theintestines becomes putrefied and leads to more toxic buildup.

youdao