为了养活地球上70亿人，今天的大多数农民只种植或养殖易于大量生产的植物和动物。

To feed the seven billion people on Earth, most farmers today are growing only species of plants and farming only species of animals that are easy to produce in large numbers.

youdao

其中一个原因是，现在越来越多国家大量生产石油，因此在全球经济中，深受油价下跌之苦的国家所占份额更大了。

One reason is that more countries are big oil producers now, so the nations suffering from the price drop account for a larger share of the global economy.

youdao

重要的是，它是迅速大量生产的，最有可能是由中心位置的专家生产的。

Of importance is the fact that it was produced rapidly in large amounts, most likely by specialists in a central location.

youdao

They invented the paper machine so they could mass-produce paper-- it didn't have to be handmade anymore-- and they invented wood pulp paper so it didn't have to be made out of cloth anymore.

于是人们发明了造纸机从而可以大量生产纸-,而不再需要手工制作-,后来人们还发明了木浆纸,所以后来不再用布料来制纸。

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