这该归入哪一级标题？

What heading does this come under?

《牛津词典》

《悉尼先驱晨报》有这样一则头版标题：“对不起，夫人，大多数澳大利亚人想要一个共和国。”

The Sydney Morning Herald carried the headline: "Sorry Ma'am, Most Australians Want a Republic."

《柯林斯英汉双解大词典》

这一栏显示邮件标题。

This column displays the title of the mail message.

《牛津词典》

Consider just the following passage from Leviathan with one of my favorite titles from the book, a chapter called "Of Darkness from Vain Philosophy " and Fabulous Traditions."

只需想想《利维坦》中如下的段落,它有一个我很喜欢的标题，这一章叫做,“空虚的哲学和神怪的传说,所造成的黑暗“

耶鲁公开课 - 政治哲学导论课程节选

I actually wrote an article, it was called, it was on the Lehman Brothers

我原先写过一篇文章，标题叫……是关于雷曼兄弟的，

研究美国经济 - SpeakingMax英语口语达人

One or two cases, maybe just one actually, where I've got more than one article by the given author, I've given the title of the article as well.

一种或两种情况，也许实际只有一种，我不止找到该作者一篇文章，我也会给出文章的标题。

耶鲁公开课 - 死亡课程节选