写一篇关于“yesterday”的作文，你可以从多个角度来展开，比如描述你昨天的活动、感受或者经历。以下是一个简单的例子，你可以根据自己的实际情况进行调整：

Yesterday

Yesterday was a very busy day. In the morning, I got up early and had a quick breakfast. Then, I went to school for my chemistry class, which lasted from 8 to 10 o'clock. After that, I went to the bookstore to buy some pens and notebooks.

In the afternoon, I decided to relax a bit and went to the library to read some books. The library was quiet and peaceful, which made it the perfect place for reading. I spent several hours there, lost in the world of the books.

As it was getting late, I returned home and started preparing for a test that I had in the evening. I studied diligently until midnight, feeling a bit tired but also proud of the effort I put in.

Reflecting on yesterday, I realize that it was a day filled with productive activities and learning experiences. Despite the busy schedule, I managed to find time to relax and enjoy the simple pleasures of reading. Overall, it was a good day that left me feeling fulfilled and prepared for the challenges of the next day.

希望这个例子能对你有所帮助!如果你想要更具体或者更个性化的内容，可以告诉我更多关于你昨天的活动和感受。