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。

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

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人们从来没有在电视上看到过普通原料的广告。

One never sees ordinary ingredients being advertised on TV.

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食物被盛在以土豆为原料的盘子里，然后再喂给猪吃。

Food is being served on potato-based plates that will be fed, in turn, to pigs.

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Here's a list of ingredients from Skippy Peanut Butter and you see that sugar is the second most common ingredient.

这有一份四季宝花生酱的配料表,你可以看到糖是含量第二多的原料

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

This is a poem about bending and breaking, forms, the material givens of the world.

这是个关于曲折和中断的诗，形式，这个世界给我们的原料。

耶鲁公开课 - 现代诗歌课程节选

You do that together with primers and with nucleotides, because if you're going to synthesize DNA you need the raw material of DNA, you need the individual nucleotides.

同时把引物和核苷酸放进去,因为合成DNA需要原料,你需要单个的核苷酸

耶鲁公开课 - 生物医学工程探索课程节选