Air pollution causes millions of premature deaths around the world every year, according to an estimate by the World Health Organization. And one of the most significant drivers of air pollution in cities is the exhaust that comes out of tailpipes from cars, trucks and buses.
根据一项估计，空气污染每年导致全球数百万人过早死亡
本文提供AI翻译、词汇注释和阅读理解测验，帮助你高效提升英语阅读能力。