字符（单词）下的水平对齐

Question

我正在尝试按以下方式对齐一些文本（如下所示，来自文字处理器）：

最好的方法是什么？我应该使用makeboxes 吗？

以下是 MWE：

\documentclass{article}

\begin{document}

\begin{itemize}
\item{In outer space,\\
the change in pressure is dominated by unicorns at low temperature;\\
by gnomes at moderate temperature; and\\
by dwarves at high temperature.}
\item{Underwater,\\
the change in pressure is dominated by lemmings at low temperature;\\
by elves at moderate temperature; and\\
by trolls at high temperature.}
\end{itemize}

\end{document}

Answer 1

\phantom例如，你可以使用如下方法：

\documentclass{article}
\usepackage{geometry}
\newcommand{\myplaceholder}{\phantom{the change in pressure is dominated }}

\begin{document}

\begin{itemize}
\item{In outer space,\\
the change in pressure is dominated by unicorns at low temperature;\\
\myplaceholder by gnomes at moderate temperature; and\\
\myplaceholder by dwarves at high temperature.}
\item{Underwater,\\
the change in pressure is dominated by lemmings at low temperature;\\
\myplaceholder by elves at moderate temperature; and\\
\myplaceholder by trolls at high temperature.}
\end{itemize}

\end{document}

---

\widthof以下是使用该calc包与以下包结合使用的替代版本\hspace：

\documentclass{article}
\usepackage{geometry}

\usepackage{calc}
\newlength{\mylength}
\setlength{\mylength}{\widthof{the change in pressure is dominated}}

\begin{document}

\begin{itemize}
\item{In outer space,\\
the change in pressure is dominated by unicorns at low temperature;

\hspace{\mylength} by gnomes at moderate temperature; and

\hspace{\mylength} by dwarves at high temperature.}
\item{Underwater,\\
the change in pressure is dominated by lemmings at low temperature;

\hspace{\mylength} by elves at moderate temperature; and

\hspace{\mylength} by trolls at high temperature.}
\end{itemize}

\end{document}

Answer 2

通过使用tabular：

\documentclass{article}

\begin{document}

\begin{itemize}
\item   In outer space,\\
        the change in pressure is dominated 
            \begin{tabular}[t]{@{} l}
            by unicorns at low temperature;\\
            by gnomes at moderate temperature; and\\
            by dwarves at high temperature.
            \end{tabular}

\item   In outer space,\\
        the change in pressure is dominated
            \begin{tabular}[t]{@{} l}
            by unicorns at low temperature;\\
            by gnomes at moderate temperature; and\\
            by dwarves at high temperature.
            \end{tabular}
\end{itemize}

\end{document}

Answer 3

带有\Longunderstack。

\documentclass{article}
\usepackage{stackengine}
\setstackEOL{\\}
\begin{document}

\begin{itemize}
\item In outer space,\\
the change in pressure is dominated \Longunderstack[l]{%
by unicorns at low temperature;\\
by gnomes at moderate temperature; and\\
by dwarves at high temperature.}
\item Underwater,\\
the change in pressure is dominated \Longunderstack[l]{%
by lemmings at low temperature;\\
by elves at moderate temperature; and\\
by trolls at high temperature.}
\end{itemize}

\end{document}

Answer 4

此解决方案使用\parbox。请注意，页面上确实没有足够的空间容纳“and”。

\documentclass{article}
\usepackage{showframe}
\begin{document}

\begin{itemize}
\sbox0{the change in pressure is dominated }% measure width
\item In outer space,\\
\usebox0\parbox[t]{\dimexpr \linewidth-\wd0}{% remaining space
by unicorns at low temperature;\\
by gnomes at moderate temperature; and\\
by dwarves at high temperature.}

\item Underwater,\\
\usebox0\parbox[t]{\dimexpr \linewidth-\wd0}{%
by lemmings at low temperature;\\
by elves at moderate temperature; and\\
by trolls at high temperature.}
\end{itemize}

\end{document}