Asthma in the U.S., for example, may be exacerbated by coal-burning power plants in China; if so, prevention is possible only if China's prime minister and energy minister are part of the solution.
Asthma in the U.S., for example, may be exacerbated by coal-burning power plants in China; if so, prevention is possible only if China's prime minister and energy minister are part of the solution.
举例来说，美国的气喘问题，可能因为中国大陆的燃煤发电厂而加剧；如果确实如此，那麽唯有中国的总理及能源部长也参与解决问题，才有可能防範。