No, the pollution does not come from cars or factories, but from human beings.

不，污染不是来自于汽车或工厂。而是由人类！

youdao

Some day perhaps, there will be factories producing television set, tape recorders, cars, or other products, with all machines operated automatically by a central computer.

将来某一天，或许有这样的工厂，它生产电视机、磁带、录音机、汽车或其他一些产品，而所有的机器均由中央计算机自动控制。

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Population size changes slowly, and human-made capital - homes, cars, roads, factories, or power plants - can last for many decades.

人口数量变化缓慢，而人类创造的资本，如住宅、汽车、道路、工厂或发电站等会持续几十年。

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People drive cars, operate heavy machinery or work in factories with inadequate ability to see, causing loss of life and lost educational opportunities.

FORBES: Laurie Garrett

As a result, cars going from factories in Detroit to showrooms in Seattle, or grain from the plains heading for the ports of the east coast, have to sit around for up to 24 hours on sidings in switching yards in Chicago or Sioux City, as the wagons carrying them are uncoupled from one firm's locomotives and shunted to those of another.

ECONOMIST: Rolling stock

So the word is going out all around the world: If you want to find the best workers in the world, if you want to find the best factories in the world, if you want to build the best cars or trucks or any other product in the world, you should invest in the United States of America.

WHITEHOUSE: President Obama Speaks on the Economy and Middle-Class Tax Cuts | The White House