写作思路：根据题目要求，以“智能手机对大学生的影响”作为主题，可以写出具体的弊端，最后进行总结，正文：
Today, I will talk about the harm of mobile phones to primary school students.
今天，我来说一说手机对大学生的危害。
Games on mobile phones are usually used by sellers to attract customers. The game is not good, it will make primary school students indulge in it, resulting in plummeting grades.
手机上的游戏，通常是销售商用来吸引顾客的。游戏并不好，它会使大学生沉迷于其中，导致成绩直线下降。
Playing mobile games often will seriously damage your eyesight and waste your hard-earned money.
经常玩手机游戏还会严重损害视力，也会浪费爸爸妈妈辛苦挣来的血汗钱。
Teenagers play games to become highly regarded people in another virtual world, and they feel that vanity has been satisfied.
青少年玩游戏是在另一个虚拟世界里成为万众瞩目的人上人，他们觉得虚荣心得到了满足。
But after all, virtuality is false and does not really exist, so it is better to put a lot of time and energy into real life.
但虚拟毕竟是假的，没有真正存在，倒不如把大把时间和精力放到现实生活中来。
The advantages of mobile phones outweigh the disadvantages, or the disadvantages outweigh the advantages. It depends on your own opinions and understanding of mobile phones at different levels.
手机利大于弊或弊大于利全靠你自己对于手机不同程度的见解和认识自行做出的选择。
More and more people use the phone,it has advantages and disadvantages.at the advantages hand,we can call our friend easily,if in case of emergency,we can call for help.The handset can also listen to music and send text messages to other people,it let human's life became more corlorful.But it has disadvantages,for example cheate on exams,when we play handset long time,it is bad for study.
In my opinion, we should use the handset rationally,do not occupy an inordinate amount of time,should not affect our study!