求翻译成英文

In twentieth Century changed the world, particularly in the United States and other industrial countries. Cars do in great use to us, but they have brought some hazards as well, such as noise pollution, air pollution and highway fatalities. According to the report of car accidents are classified as death or injury throughout the world is one of the main reasons. Fortunately modern innovators are again, the invention of the automobile. New propulsion system ( propulsion system ), fuel, design and means of manufacturing cars in the past ten years has been the rapid development of.