heading line

例句：

1. 1. The company's new productis a significant advancement in the industry.
   该公司的新产品是该行业的重大进步。
2. 2. Themeeting was scheduled to begin at 2:00 p.m. sharp.
   会议定于下午2点准时开始。
3. 3.The writer used heading lines to organize histhoughts and ideas.
   作者使用标题线来组织他的思想与想法。