The last page of this book is blank, so you can write notes.

这本书的最后一页是空白处，你可以写笔记。

I write notes, messages, letters, or reports in English.

使用英文留纸条、留话、写信、或写报告。

I write notes to myself before having conversations with people.

当我在和别人聊天前，我会提前写些提示性的便条