footnote

例句：

1. 1. In the text, I have included a footnote to explain the source of some information.
   在文本中，我添加了一个脚注来解释某些信息的来源。
2. 2.The author has provided a footnote to clarify the significance of certain terms in the text.
   作者提供了脚注来阐明文本中某些术语的重要性。
3. 3. The book ends with a footnote that provides additional context for the events described in the previous chapters.
   这本书以脚注结束，为前几章描述的事件提供了额外的上下文。