raw-food material的意思|示意

As in the sea, it seems that on the land one key food chain collapsed: the one with leaves as its basic raw material.

和在海洋中一样，陆地上一个关键食物链，一个以树叶为基本原料的食物链似乎也崩坏了。

The average consumer in an advanced economy is effectively experiencing a decline in purchasing power over food, energy, and raw material-intensive manufactures.

发达国家的一般消费者正在实际上经历着在购买力的降低，通过食品、能源和原材料密集制造品。

Based on that timing, they indicate barley may have arrived in the region not as food, but as raw material for beer brewing.

根据那个时间点，他们指出，大麦可能不是作为食物，而是作为啤酒酿造的原料到达那里的。