假设你是李华，你校英文校报计划举行"妥善处理口罩，共创卫生校园"的活动，正在针对该活动征集倡议信。请你写一封倡议信投稿。内容包括：
1.乱扔口罩的现象；
2.乱扔口罩的危害及应对措施；
注意：
1.词数80左右；
2.可以适当增加细节，以使行文连贯。

【考点】提纲作文；计划愿望．

【答案】Properly Handle Masks，Create a Healthy Campus
With the development of COVID-19，wearing masks has become a daily activity，which effectively protects people's health.However，many people discard masks at will，causing great harm to the environment，which will harm people's health.Because if the virus on the mask can not be effectively handled，it will cause secondary infection.
To raise people's attention to this phenomenon，our English school newspaper plans to hold an activity named "properly handle masks，create a healthy campus" .We not only need to put our used masks in the designated dustbin，but also call on the people around us to do it.As long as we all do this，the problem will be solved.