| 例句 |
There are many sources of air pollution; exhaust fumes, for example.空气污染有许多来源，例如废气。Automobile exhaust fumes are one of the major causes of smog.汽车排出的废气是造成烟雾的主要原因之一。Sometimes exhaust fumes escape into the vehicle.有时废气会漏到车内。The air was heavily polluted with exhaust fumes.这里的空气被废气严重污染了。The city's streets are filthy and choked with exhaust fumes.那座城市的街道肮脏不堪，弥漫着令人窒息的废气。 |