Discussion:
1.As far as I amconcerned, an array of integrated factors contributes to the ...The first rolethat should be blamed is...Another equally important factor lies in…Last butnot least...：
2. When everyoneis fully aware of the severity and take feasible measures, I firmly believe...
3. Recently the...has been brought into focus...Nowhere in history has the issue been morevisible. In this essay, I aim to explore this complicated phenomenon fromdiverse perspectives, identify the relevant contributing factors and bring upsome effective measures.
4. As a matterof fact, ...gives rise to a host of problems, such as...Confronted with such athorny issue, people come up with a variety of constructive countermeasures.Personally, the following are worth recommendation... ：
Argument:
1.It is indisputablethat nowhere in history has...been more visible. As far as I am concerned…
2.NO inventionhas received more praises and abuses than cars… Now there is a growingawareness over traffic safety.
3. Although somepeople acclaim that…I am still prone to go along with the other side based on thefollowing sound reasons.：
4.To embark onit, it comes as the first problem that...：
5. Should itremain unable to unfold my perspectives, it'll come as reinforcement that…