Source: Bureau of Labor Statistics, Current Population Survey.
学术词汇使用较丰富,拼写做的很棒;句法知识很棒,若增加一些从句的使用,文章会更出色;文章结构不够严谨,应增加过程性词汇的使用。
Traffic pollution With the development of economy and science and technology,private cars are becoming more and more widespread in China.Cars make our life more convenient,at the same time the traffic is a big source of pollution in cities. Producing cars needs a lot of resources and makes environment`s pressure become bigger.As is know to all,our resources is reducing.Besides,cars use fossil fuel and discharge waste-gas.Fossil fuel often cause air pollution.Meanwhile traffic jams speeding cars brings much dust and endanger city residents` breathe. Of course ,private cars` number is on the rise which is an important reason. Our environment needs everyone`s effort.Green travel bus priority.