\begin{frame} \frametitle{全体像(散弾銃的発表)}
\begin{columns}
    \begin{column}{0.15\textwidth}
        % \begin{itemize}
        %     \item $1$章
        %     \item $3$章
        % \end{itemize}
        $1,3$章
    \end{column}
    \begin{column}{0.8\textwidth}
    \vspace{-20pt}
    \begin{figure}
    \centering
    \includegraphics[width=\linewidth]{WholeSketch.jpeg}
\end{figure}
    \end{column}
    \begin{column}{0.1\textwidth}
        % \begin{itemize}
        %     \item $2$章
        % \end{itemize}
        $2$章
    \end{column}
\end{columns}
\end{frame}