我自己写的哈,希望采纳!百分数你可以自己修改哈!
According to the survey about the mobile phone using in the school, 30% of the students often use a mobile phone, 20% of the students occasionally use it,and the rest never use it.
跟据对学校里手机使用情况的调查,30%的学生经常使用手机,20%的学生偶尔使用,其余的根本不用.