校车安全的四级英语作文

As we all know,recent accidents resulted from school buses have risen national concern about the safety of school buses.
As a primary transportation for school children,the frequent accidents of school buses can be traced to several reasons.First of all,school budget is limited so that the school cannot afford sufficient buses.Secondly,the regulation on overloading is not perfect.Consequently,school buses often accommodate more students than the required number,which will be potentially dangerous.
In order to guarantee the safety of school buses,schools and the society must cooperate to enhance the security standard and be responsible for the students.
104个词,可能有点少,再加点吧.第一段校车事故频发引关注；第二段分析原因；最后呼吁.
ps：这种题目可能不会考.自己理个思路就行了.