答案1
正如@David Carlisle所建议的,你似乎想要一个描述环境,其中的“标题”单独一行。你可以很容易地通过以下方式获得它enumitem
:
\documentclass{book}
\usepackage{enumitem}
\setlength\parindent{1em}
\begin{document}
\begin{description}[style=nextline, listparindent=\parindent, parsep=0pt]
\item[The First Item]This text describes the first item.
\item[The Second Item]This text describes the second item.
Contrary to the description of the first item, it is quite a bit longer.
Additionally, it consists of multiple paragraphs, which causes problems
with redefining the item command.
\end{description}
\end{document}