最近，你和同学就本校学生的近视问题做了一次调查。请根据以下内容（现状、原因、结果与建议），写一篇英文广播稿。
注意: 1. 请勿提及与考生相关的真实信息。
2. 可以适当增加细节，使行文连贯。
3. 词数100左右，开头已给出，不计入总词数。
Present situation（现状）
● more and more students are becoming short-sighted
● wear glasses: girls (48.3%), boys (55.2%)
Reasons（原因）
● use mobile phones too much
● have bad reading habits
Results（结果）
● cannot see the blackboard clearly in class
● unable to do sports freely with glasses on
Suggestions（建议）
● spend less time on mobile phones and TV
● do eye exercises
......

Recently we have done a survey of short-sightedness in our school.

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