答案1
答案2
这是一个可能的解决方案:
\documentclass{article}
\usepackage{enumitem}
\usepackage{lipsum}
\begin{document}
\begin{enumerate}[wide=0pt, label =(\arabic*), parsep = 1ex]
\item \makebox[\linewidth]{$r_1,,r_2,\dots, r_{\varphi(m)} $}
\lipsum[11]
\item \makebox[\linewidth]{$\rho_{k} \equiv r_{k}\pmod{m} $}
\lipsum[11]
\end{enumerate}
\end{document}