1.  For example, a new word may appear\

2.  For example, a market may no longer stay on the Pareto frontier since market failure.

3.  Firstly, the pressure may causes by the study.

4.  Firstly, the number of accidents involving moped and pedestrians may not the most grievous accident in the city.

5.  For example, the government might intent to mask their environmental problems by forbidding reporting relative news.

6.  Finally, the restriction of rental of mopeds may not an excellent proposal compared with other methods.

7.  What's more, pets may also bing bad influence to the environment.