假设你是新华中学高三学生李华，进入高中后你的朋友William感到压力很大，学习效果甚微，请你给他写一封电子邮件，帮助他放松身心，提高学习效率。
内容要点：
1. 快乐学习，保持愉快的心情；
2. 积极参加体育活动，听听歌曲音乐；
3. 多与同学交流，互相鼓励。
注意：
1. 开头和结尾已经为你写好,词数100词左右； 2. 可适当增加细节，以使行文连贯。
Dear William,
Recently, I have heard that you feel stressed as a student of Senior Three.
judgeBest wishes!
Yours,
Li Hua
One possible version：
Dear William,
Recently, I have heard that you feel stressed as a student of Senior Three. Here is some advice on how to study effectively.
First of all, learn in a relaxing way. This will remove our pressure, making study an easy job. Another way to keep up our spirits is to take part in sports. Not only does exercise build up the body, but also it provides us time to relax and fresh our mind, making us memorize things faster and longer. Music, too, is another effective means of refreshing and helping us concentrate better.
Last but not least, we should exchange ideas with our classmates. Through the communication we can find support, which will encourge us to overcome difficulties in our study.
Hope these can benefit you.
Best wishes!