Dear Peter,

Knowing that you always feel sleepy in class and that it has affected your study, I am writing togive you some advice on how to stay awake in class.

Firstly, don't worry too much. Nodding off in class is common for students of any age. Secondly,be actively involved, whether it's taking notes or joining in a classroom discussion. Doing these canhelp keep you from falling asleep. Finally, it's better to follow a set schedule of bedtime and wake-uptime. Remember not to stay up late often.

I do hope that you will find my advice helpful.

Yours,

Li Hua

亲爱的彼得，

我知道你总是在课堂上昏昏欲睡，这影响了你的学习，因此写信给你一些关于如何在课堂上保持清醒的建议。

首先，不要太担心。上课打瞌睡对任何年龄的学生来说都很常见。第二，积极参与，无论是记笔记还是参加课堂讨论。这样做可以帮助你不睡着。最后，最好遵循一个固定的就寝时间和起床时间。记住不要经常熬夜。

我真心希望你会觉得我的建议有帮助。

你的，

李华