Imagine your sitting on your front garden admiring the shining sun when your neighbor comes with that annoying car with the buzzing sound and the exhaust pipe blows out this horrible black smoke.

• 设想一下，你正座在自家的宅前花园中享受着明媚的阳光，这时，你的邻居开着那辆嘟嘟作响、排气管冒着可怕黑烟的汽车过来了。