答案1
类似这样的事?
\documentclass[a4paper,12pt]{article}
\usepackage{lipsum,changepage}
\usepackage{parskip}
\usepackage[top=2cm,bottom=2cm,left=2cm,right=2cm]{geometry}
\usepackage[most]{tcolorbox}
\newtcolorbox{myquotation}{%
blank,breakable,parbox=false,check odd page,left=2cm,
toggle left and right}
\begin{document}
\lipsum[1-4]
\begin{myquotation}
\lipsum[1-4]
\end{myquotation}
\lipsum[1-2]
\end{document}