题目内容：

假设你是学生李华，得知好朋友William在学习中感到压力很大，学习效果甚微，请你按照以下要点给他写一封电子邮件，帮助他放松身心，提高学习效率。

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. 词数100左右，开头和结尾已经为你写好(不记入总词数)，但不得抄入答题卡内。

2. 可适当增加细节，以使行文连贯。

Dear William,

Recently, I have heard that you feel stressed about study. I have a good mind to offer you some advice on how to study effectively. ___________________________

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Yours,

Li Hua