请问，类似上图的三线表格的latex 代码怎么写?
我运行下面的代码出错！（出现 some character were lost while converting from UNICODE to CP 0? save to file anyway?）
求教正确的代码！！！
\begin{table}[!hbp]
\begin{tabular}{l}
      \toprule
       \Symbol & Description\\
      \midrule
\parbox{\linewidth}{
         \begin{enumerate}
           \$p$ & The manufacturer's retail price of the product\\
           \$c$ & The manufacturer's marginal cost of production\\
           \$p_{j}$ & The market clearance price for the secondary sharing market in period $j$\\
           \$U$ & Consumer’s utility\\
           \$\pi$ & The firm’s profit\\
                \end{enumerate}  }\\
      \bottomrule
    \end{tabular}
    \end{table}