答案1
迟到总比不到好。
重新定义一些东西应该可以让你得到你想要的。
\documentclass{article}
\usepackage{blindtext}
\usepackage{titling}
\usepackage{array}
\preauthor{\begin{center}
\large \lineskip .75em%
\begin{tabular}[t]{>{\centering\arraybackslash}p{.45\textwidth}}}
\postauthor{\end{tabular}\par\end{center}}
\makeatletter
\renewcommand\and{% % \begin{tabular}
\end{tabular}%
\hfill
\begin{tabular}[t]{>{\centering\arraybackslash}p{.45\textwidth}}}% % \end{tabular}
\makeatother
\begin{document}
\title{This is a story of great friends}
\author{Wombat \\ Australia \and
Capybara \\ Brasil \and
Mara \\ Patagonia \and
Nasenb\"ar \\ M\"onchengladbach}
\maketitle
\blindtext
\end{document}