diff --git a/paper/main.tex b/paper/main.tex
index 06af48a..00c6978 100644
--- a/paper/main.tex
+++ b/paper/main.tex
@@ -119,22 +119,23 @@ Thus, we divide the phonons of defect-free 4H-SiC into three categories:
 \begin{sidewaystable}
   \centering
   {
-    \newcommand{\tworow}[1]{\multirow{2}{*}{#1}}
     \newcommand{\twocol}[1]{\multicolumn{2}{C{1cm}|}{#1}}
     \newcommand{\threecol}[1]{\multicolumn{3}{C{1.5cm}|}{#1}}
-    \newcommand{\allcol}[1]{\multicolumn{26}{C{15cm}|}{#1}}
-    \caption{Title}
+    \newcommand{\wthreecol}[1]{\multicolumn{3}{C{2cm}|}{#1}}
+    \newcommand{\allcol}[1]{\multicolumn{26}{C{16cm}|}{#1}}
+    \setlength\tabcolsep{0pt} % 不加这句话的话，表格的竖线的宽度会被计入，导致合并后的单元格不居中
+    \caption{Weak- and None-polarized phonons near $\Gamma$ point}
     \begin{tabular}{
       | C{4cm}  % header
         | C{0.5cm} | C{0.5cm} | C{0.5cm}  % E2
         | C{0.5cm} | C{0.5cm} | C{0.5cm}  % E2
         | C{0.5cm} | C{0.5cm}             % E1
         | C{1cm} | C{1cm}                 % 2B1
-        | C{0.5cm} | C{0.5cm} | C{0.5cm}  % A1
+        | C{0.5cm} | C{0.5cm} | C{1cm}    % A1
         | C{0.5cm} | C{0.5cm}             % E1
         | C{0.5cm} | C{0.5cm} | C{0.5cm}  % E2
         | C{0.5cm} | C{0.5cm} | C{0.5cm}  % E2
-        | C{0.5cm} | C{0.5cm} | C{0.5cm}  % A1
+        | C{0.5cm} | C{0.5cm} | C{1cm}    % A1
         | C{1cm} | C{1cm}                 % 2B1
     | }
       \hline
@@ -143,14 +144,14 @@ Thus, we divide the phonons of defect-free 4H-SiC into three categories:
         & 3 & \twocol{4}    % E2
         & 5 & 6             % E1
         & 7 & 8             % 2B1
-        & \threecol{9}      % A1
+        & \wthreecol{9}     % A1
         & 10 & 11           % E1
         & 12 & \twocol{13}  % E2
         & 14 & \twocol{15}  % E2
-        & \threecol{16}     % A1
+        & \wthreecol{16}    % A1
         & 17 & 18           % 2B1
       \\ \hline
-      \textbf{Direction of Incident \& Scattered Light}
+      \textbf{\makecell{Direction of Incident \\ \& Scattered Light}}
         & \allcol{\makecell{Any direction \\ (not depend on direction of incident \& scattered light)}}
       \\ \hline
       \textbf{Vibration Direction}
@@ -158,24 +159,36 @@ Thus, we divide the phonons of defect-free 4H-SiC into three categories:
         & x & \twocol{y}    % E2
         & x & y             % E1
         & z & z             % 2B1
-        & \threecol{z}      % A1
+        & \wthreecol{z}     % A1
         & x & y             % E1
         & x & \twocol{y}    % E2
         & x & \twocol{y}    % E2
-        & \threecol{z}      % A1
+        & \wthreecol{z}     % A1
         & z & z             % 2B1
       \\ \hline
       \textbf{Representation in Group $\mathrm{C_{6v}}$}
-        & \threecol{$\mathrm{E_2}$}
-        & \threecol{$\mathrm{E_2}$}
-        & \twocol{$\mathrm{E_1}$}
-        & $\mathrm{B_1}$ & $\mathrm{B_1}$
-        & \threecol{$\mathrm{A_1}$}
-        & \twocol{$\mathrm{E_1}$}
-        & \threecol{$\mathrm{E_2}$}
-        & \threecol{$\mathrm{E_2}$}
-        & \threecol{$\mathrm{A_1}$}
-        & $\mathrm{B_1}$ & $\mathrm{B_1}$
+        & \threecol{$\mathrm{E_2}$}       % E2
+        & \threecol{$\mathrm{E_2}$}       % E2
+        & \twocol{$\mathrm{E_1}$}         % E1
+        & $\mathrm{B_1}$ & $\mathrm{B_1}$ % 2B1
+        & \wthreecol{$\mathrm{A_1}$}      % A1
+        & \twocol{$\mathrm{E_1}$}         % E1
+        & \threecol{$\mathrm{E_2}$}       % E2
+        & \threecol{$\mathrm{E_2}$}       % E2
+        & \wthreecol{$\mathrm{A_1}$}      % A1
+        & $\mathrm{B_1}$ & $\mathrm{B_1}$ % 2B1
+      \\ \hline
+      \textbf{Representation in Group $\mathrm{C_{2v}}$}
+        & $\mathrm{A_2}$ & \twocol{$\mathrm{A_1}$}  % E2
+        & $\mathrm{A_2}$ & \twocol{$\mathrm{A_1}$}  % E2
+        & $\mathrm{B_2}$ & $\mathrm{B_1}$           % E1
+        & $\mathrm{B_1}$ & $\mathrm{B_1}$           % 2B1
+        & \wthreecol{$\mathrm{A_1}$}                % A1
+        & $\mathrm{B_2}$ & $\mathrm{B_1}$           % E1
+        & $\mathrm{A_2}$ & \twocol{$\mathrm{A_1}$}  % E2
+        & $\mathrm{A_2}$ & \twocol{$\mathrm{A_1}$}  % E2
+        & \wthreecol{$\mathrm{A_1}$}                % A1
+        & $\mathrm{B_1}$ & $\mathrm{B_1}$           % 2B1
       \\ \hline
       \textbf{Scattering in Polarization}
         & xy & xx & yy  % E2
@@ -206,7 +219,7 @@ Thus, we divide the phonons of defect-free 4H-SiC into three categories:
         & \threecol{Yes}      % E2
         & \twocol{Yes}        % E1
         & No & No             % 2B1
-        & \threecol{Yes}      % A1
+        & \wthreecol{Yes}     % A1
         & \twocol{No}         % E1
         & \threecol{Yes}      % E2
         & \threecol{No}       % E2
@@ -214,23 +227,23 @@ Thus, we divide the phonons of defect-free 4H-SiC into three categories:
         & No & No             % 2B1
       \\ \hline
       \textbf{Wavenumber (Simulation) ($\mathrm{cm^{-1}}$)}
-        & \threecol{$190.51$} % E2
-        & \threecol{$190.51$} % E2
-        & \twocol{$257.35$}   % E1
-        & $389.96$ & $389.96$ % 2B1
-        & \threecol{$591.90$} % A1
-        & \twocol{$746.91$}   % E1
-        & \threecol{$756.25$} % E2
-        & \threecol{$764.33$} % E2
-        & \threecol{$812.87$} % A1
-        & $885.68$ & $894.13$ % 2B1
+        & \threecol{$190.51$}   % E2
+        & \threecol{$190.51$}   % E2
+        & \twocol{$257.35$}     % E1
+        & $389.96$ & $389.96$   % 2B1
+        & \wthreecol{$591.90$}  % A1
+        & \twocol{$746.91$}     % E1
+        & \threecol{$756.25$}   % E2
+        & \threecol{$764.33$}   % E2
+        & \wthreecol{$812.87$}  % A1
+        & $885.68$ & $894.13$   % 2B1
       \\ \hline
       \textbf{Wavenumber (Experiment) ($\mathrm{cm^{-1}}$)}
         & \threecol{$195.5$}  % E2
         & \threecol{$203.3$}  % E2
         & \twocol{$269.7$}    % E1
         & - & -               % 2B1
-        & \threecol{$609.5$}  % A1
+        & \wthreecol{$609.5$} % A1
         & \twocol{-}          % E1
         & \threecol{$776$}    % E2
         & \threecol{-}        % E2
@@ -238,16 +251,16 @@ Thus, we divide the phonons of defect-free 4H-SiC into three categories:
         & - & -               % 2B1
       \\ \hline
       \textbf{Electrical Polarity}
-        & \threecol{None} % E2
-        & \threecol{None} % E2
-        & \twocol{Weak}   % E1
-        & None & None     % 2B1
-        & \threecol{Weak} % A1
-        & \twocol{Weak}   % E1
-        & \threecol{None} % E2
-        & \threecol{None} % E2
-        & \threecol{Weak} % A1
-        & None & None     % 2B1
+        & \threecol{None}   % E2
+        & \threecol{None}   % E2
+        & \twocol{Weak}     % E1
+        & None & None       % 2B1
+        & \wthreecol{Weak}  % A1
+        & \twocol{Weak}     % E1
+        & \threecol{None}   % E2
+        & \threecol{None}   % E2
+        & \wthreecol{Weak}  % A1
+        & None & None       % 2B1
       \\ \hline
     \end{tabular}
   }