游牧社会的流动性反映了他们对动物性食物的依赖。

The mobility of pastoralist societies reflects their dependence on animal-based foods.

youdao

现在，我不会说工作人员餐厅没有动物性食物了。

Now, I’m not going to say there’s no more animal-based food in the staff dining room.

youdao

因此许多年来，蛋白质总是与动物性食物联系在一起。

And so over the years, protein tended to be associated with animal-based foods.

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