start-of-heading

例句：

1. 1. The book's start-of-heading is a short summary of the main ideas.
   这本书的标题是主要观点的简短概述。
2. 2.The headline of the news report was about the upcoming election.
   新闻报告的标题是关于即将到来的选举。
3. 3. The introduction to the article explains the background information needed for understanding the topic.
   文章的引言解释了理解主题所需的背景信息。