教育部已经正式发布通知：中小学生原则上不得将个人手机带入校园。很多学校已经开始实施此项管理。为了响应这一政策，你校也开展了"学生无手机进校园"活动，但都屡禁不止。'假定你是校学生会主席，希望同学们为创建"无手机校园"做出自己的贡献。请你按照所提示的要点，代表学生会写一篇倡议书。

目的	1.学生更加专心学习，积极参与课堂活动； 2.……
具体做法	1.制定承诺书，要求全体同学参与签字活动； 2.召开家长会，号召家长们支持此项工作； 3.……
意义	自由发挥，至少一点。

要求：
（1）须包含提示中的所有信息，可适当发挥，条理清晰，语意连贯；
（2）词数：80 左右（开头已经给出，不计入总词数）。
参考词汇：沉迷于 be addicted to 承诺书 letter of commitment 家长会 parents' meeting 签字活动signature activity
My dear fellow students，
    The Ministry of Education has carried out a policy that students in primary and secondary schools are not allowed to take mobile phones into campus.
_______
Students' Union

【考点】倡议书；学校生活．

【答案】My dear fellow students，
   The Ministry of Education has carried out a policy that students in primary and secondary schools are not allowed to take mobile phones into campus.
   It can make students more focused on their studies and actively participate in class activjye.aiies.It also ensures discipline in the classroom.Therefore，we need to make a commitment and ask all students to participate in the signing activity.We will also hold parents' meetings to call on parents to support this work.We also need to publicize the disadvantages of mobile phones on campus.
   I believe that we will have a quiet learning environment and students' learning efficiency will be greatly improved.