假定你是学生会主席李华，当前新冠状病毒肆虐，请你围绕 “从小事做起共战疫情” 这一主题，给全校学生写一封英文倡议书。
要点如下：1. 倡议的原因和目的；2. 倡议的具体内容；3. 发出倡议。
注意：1. 词数150左右；2. 可以适当增加细节，以使行文连贯。
Over the past fifteen days, the novel virus has made its way around China. It has a strong impact on our life and study. Faced with the crisis, we students should respond actively to the appeal from authority and experts. In order to ease the serious condition, all of students had better do as follows.
First of all, stay at home and don't go out if not necessary. Be responsible for yourself and others. In addition, do wear masks while you are in the open air. As we all know, it can reduce the risk of contracting the virus. Washing hands as often as possible is needed, too. Most importantly, everyone ought to have a positive attitude to the campaign with the disease. Attitude is everything.
My dear friends, there may be a long way to go for us. Let's work hand in hand to overcome anxiety and do some bits. We have faith in the fact that tomorrow is another day.
The Students' Union
Feb. 14th, 2021