......
\end{tabular}
\begin{tablenotes}
    \item [a] {need to notice that...}
    \item [b] {...}
\end{tablenotes}
\end{threeparttable}}% 第二个 } 所在行 须有 \end 命令
\end{table*}
\end{center}
\clearpage

[2]缩小方法(之二): 在\begin{table}后使用\footnotesize或其他指定的font size使得table字体变小, 注意太宽的表格变化后还有可能过宽, 此法只能暂时用用.

\begin{table*}[htb]\footnotesize
\begin{threeparttable}[b]
\caption{KE.\tnote{a}
\label{Tab:KE}}
\begin{tabular}{llccccccc}
    ...
\end{tabular}
 \begin{tablenotes}
    \item [a] {Note a.}
 \end{tablenotes}
\end{threeparttable}
\end{table*}
\clearpage


[3]横排:用到\usepackage{rotating}

\begin{sidewaystable}
\centering
\begin{threeparttable}[b]
\caption{Survey of bond lengths.\tnote{a}}
\label{Tab:bondleng}
\begin{tabular}{ccccccccccc}
 ...
\end{tabular}
  \begin{tablenotes}
    \item [a] { } 
   \end{tablenotes}
\end{threeparttable}
\end{sidewaystable}
\clearpage