美国各地的城市都在治理空气污染，做法是控制汽车废气排放、限制使用薪柴炉和监测工厂污染。
Cities across the U. S. are cracking down on air pollution by enforcing auto emissions control, limiting the use of wood burning stoves, and by monitoring factory pollution.
她说：“以前我一直认为治理污染并不是自己的责任，因为我既不开工厂，也没有车。
"I used to think it's not my duty to deal with air pollution–I don't own a factory or a car, " said Cheng.
居民被搬迁，工厂被关闭，输电线被埋到地下，运河得到治理。此外还建起了停车场、游客中心和旅馆。
Residents were moved. Factories were shut down. Power lines were buried underground. The canals were cleaned up. Parking lots, visitor centers and hotels were built.
应用推荐