diff --git a/njuthesis.dtx b/njuthesis.dtx
index 474285b8a3b2a76f010d6bf9508ae928410244c2..479a398747a18e2fcee83a25dc9b57e36e975f1f 100644
--- a/njuthesis.dtx
+++ b/njuthesis.dtx
@@ -207,7 +207,7 @@ through XeTeX.
 %
 %<class>\NeedsTeXFormat{LaTeX2e}
 %<class>\RequirePackage{expl3}
-%<!(readme-zh|readme-en)> \GetIdInfo  $Id: njuthesis.dtx 0.9.0 2020-09-15 12:00:00 +0800  NJU LUG <my@yaoge123.com> $
+%<!(readme-zh|readme-en)> \GetIdInfo  $Id: njuthesis.dtx 0.9.0 2021-09-15 12:00:00 +0800  NJU LUG <my@yaoge123.com> $
 %<class>  {Thesis template for Nanjing University}
 %<class>\ProvidesExplClass{\ExplFileName}{\ExplFileDate}{\ExplFileVersion}{\ExplFileDescription}
 %
@@ -220,18 +220,24 @@ through XeTeX.
 %</driver>
 % \fi
 %
-% \title{The \pkg{njuthesis} package\\ 鍗椾含澶у瀛︿綅璁烘枃妯℃澘}
+% \title{The \textsc{NJuThesis} class\\ 鍗椾含澶у瀛︿綅璁烘枃妯℃澘}
 % 
 % \author{^^A
 % Nanjing University Linux User Group\thanks{E-mail: \href{mailto:my@yaoge123.com}{my@yaoge123.com}}}
 %
-% \date{Released 2021-09-13}
+% \date{v0.9.0 \\ Released 2021-09-15}
 %
 % \maketitle
 %
 % \begin{abstract}
 % 鍗椾含澶у瀛︿綅璁烘枃\hologo{LaTeX}妯℃澘鍩轰簬鏈鐢熼櫌鐨勮鏂囨挵鍐欒鑼冨埗浣滐紝鍚屾椂鍙傝€冪爺绌剁敓闄㈡彁渚涚殑纭曞+銆佸崥澹浣嶆潗鏂欏寘锛岀敤浜庣敓鎴愮鍚堝崡浜ぇ瀛﹀浣嶈鏂囨帓鐗堣姹傚拰鐩稿簲鐨勫浗瀹惰鑼冦€佽涓氭爣鍑嗙殑瀛︿綅璁烘枃锛屾棬鍦ㄤ负鍚屽鎻愪緵姣曚笟璁烘枃涔﹀啓鐨勬柟渚裤€�
 % \end{abstract}
+%
+% \def\abstractname{鐗瑰埆澹版槑}
+% \begin{abstract}
+% 璇锋敞鎰忥紝鏈ā鏉夸粛鏈畬鎴愬紑鍙戯紝鍑虹幇bug鎴栬€呮枃妗d笉瀹屽杽灞炰簬姝e父鎯呭喌锛屾彁issue鍗冲彲銆�
+% \end{abstract}
+%
 % \clearpage
 %
 % \tableofcontents
@@ -272,7 +278,7 @@ through XeTeX.
 %     \end{tabular}
 % \end{table}
 %
-% \section{鏈湴缂栬瘧}
+% \subsection{鏈湴缂栬瘧}
 %
 % \subsubsection{瀹夎\hologo{TeX}鍙戣鐗坿
 %
@@ -326,17 +332,14 @@ through XeTeX.
 %
 % 鐢变簬\href{https://www.overleaf.com/}{Overleaf骞冲彴}鐨刓hologo{TeX}\,Live鐗堟湰鍋滅暀鍦�2020锛孿texttt{cleveref}鍖呭湪寮曠敤绔犺妭鏃朵細鐢熸垚閿欒鐨勬爣绛撅紝寮曞彂鏍煎紡閿欒锛涜€屽崡澶hologo{TeX}閫氳繃鍙婃椂鏇存柊瑙勯伩浜嗚繖涓€闂銆傚洜姝emph{璇峰姟蹇呬笉瑕佷娇鐢∣verleaf瀹樼綉杩涜缂栬瘧}銆�
 %
-% \subsection{瀛椾綋}
-%
-% 瀛︽牎璁烘枃鏍煎紡瑕佹眰浣跨敤鐨勫瓧浣撲竴鑸凡缁忛瑁呭湪鍚勪釜鎿嶄綔绯荤粺锛屾湰妯℃澘閽堝涓嶅悓骞冲彴杩涜浜嗚嚜鍔ㄦ娴嬮€傞厤锛屽彲浠ュ紑绠卞嵆鐢ㄣ€�
-%
-% 鍚勪釜绯荤粺鐨勯粯璁ゅ瓧浣撹鍙傝€儃tab:defaultfontset}銆傚彲浠ョ湅鍒帮紝涓嶅悓绯荤粺涓婁娇鐢ㄧ殑瀛椾綋鏈夋墍宸埆锛屽疄闄呰緭鍑虹粨鏋滃彲鑳藉瓨鍦ㄧ粏寰笉鍚�, 浣跨敤鏃惰娉ㄦ剰銆備緥濡傦紝鍦↙inux骞冲彴鎴栬€呬娇鐢ㄤ簡Ubuntu鍚庣鐨勫崡澶hologo{TeX}涓婏紝瀹嬩綋鍔犵矖鏁堟灉鏇存槑鏄撅紱鍙︿竴鏂归潰锛屽湪Windows骞冲彴杩涜缂栬瘧鐨勬晥鏋滄洿鎺ヨ繎Word鍔犵矖\footnote{鍥犱负SimSun娌℃湁鍘熺敓绮椾綋锛岄€氳繃AutoFakeBold=2.17杩涜妯′豢}銆�
 %
 %
 % \section{浣跨敤鏂规硶}
 %
 % \subsection{鑷畾涔夐€夐」}
 %
+% 鍔犵矖鐨勪负榛樿閫夐」
+%
 % \begin{function}[added=2021-09-07]{titlelength}
 %   \begin{syntax}
 %     titlelength = <(1)|2|3>
@@ -367,7 +370,7 @@ through XeTeX.
 % \subsubsection{瀛︿綅淇℃伅}
 % \begin{function}[added=2021-09-07]{degree}
 %   \begin{syntax}
-%     degree = <mg|mf|phd|(ug)>
+%     degree = <(ug)|mg|mf|phd>
 %   \end{syntax}
 %
 % 閫夋嫨瀛︿綅锛屽彲閫夛細
@@ -377,7 +380,7 @@ through XeTeX.
 %
 % \begin{function}[added=2021-09-07]{type}
 %   \begin{syntax}
-%     type = <design|(thesis)>
+%     type = <(thesis)|design>
 %   \end{syntax}
 %
 % 鐢ㄤ簬閫夋嫨鏂囨。绫诲瀷骞跺皢鐩稿叧瀛楁杈撳嚭鍦ㄥ皝闈㈠拰鎽樿椤点€傚彲閫夊€煎寘鎷瑃hesis锛堣〃绀烘瘯涓氳鏂囷級鍜宒esign锛堣〃绀烘瘯涓氳璁★級锛岀己鐪佸€间负thesis銆�
@@ -393,13 +396,15 @@ through XeTeX.
 %     systemfont = <\TFF>
 %   \end{syntax}
 %
-% 鏄惁浣跨敤绯荤粺棰勮鐨勫瓧浣擄紝鍙€夛細
-% \opt{true}锛堥粯璁わ級锛孿opt{false}銆�
+% 瀛︽牎璁烘枃鏍煎紡瑕佹眰浣跨敤鐨勫瓧浣撲竴鑸凡缁忛瑁呭湪鍚勪釜鎿嶄綔绯荤粺锛屾湰妯℃澘閽堝涓嶅悓骞冲彴杩涜浜嗚嚜鍔ㄦ娴嬮€傞厤锛屽彲浠ュ紑绠卞嵆鐢ㄣ€�
+%
+% 濡傛灉甯屾湜鏇存敼鏈ā鏉夸娇鐢ㄧ殑瀛椾綋锛岃灏嗘湰閫夐」璁剧疆涓篭opt{false}锛岀劧鍚庝娇鐢ㄤ互涓嬩袱涓€夐」鍗曠嫭璁剧疆瑗挎枃鍜屼腑鏂囧瓧浣撱€�
+% 
 % \end{function}
 %
 % \begin{function}[added=2021-09-07]{customlatinfont}
 %   \begin{syntax}
-%     customlatinfont = <null|macos|gyre|(windows)>
+%     customlatinfont = <(windows)|macos|gyre|null>
 %   \end{syntax}
 %
 % 鎵嬪姩鎸囧畾鑻辨枃瀛椾綋锛屽彲閫夛細
@@ -409,11 +414,20 @@ through XeTeX.
 % 
 % \begin{function}[added=2021-09-07]{customchinesefont}
 %   \begin{syntax}
-%     customchinesefont = <null|macos|fandol|founder|noto|(windows)>
+%     customchinesefont = <(windows)|macos|fandol|founder|noto|null>
 %   \end{syntax}
 %
 % 鎵嬪姩鎸囧畾涓枃瀛椾綋锛屽彲閫夛細
 % \opt{windows}锛堥粯璁わ級锛� \opt{macos}锛� \opt{fandol}锛� \opt{founder}锛孿opt{noto}锛孿opt{null}銆�
+%
+% FZSSK 鏂规涔﹀畫锛堢畝绻佹墿灞曪級 http://www.foundertype.com/index.php/FontInfo/index/id/151 鍏嶈垂鍟嗙敤
+%
+% FZXBSK 鏂规灏忔爣瀹嬶紙绠€绻佹墿灞曪級 http://www.foundertype.com/index.php/FontInfo/index/id/164 璁捐甯堥潪鍟嗗厤璐�
+%
+% FZKTK 鏂规妤蜂綋锛堢畝绻佹墿灞曪級 http://www.foundertype.com/index.php/FontInfo/index/id/137 鍏嶈垂鍟嗙敤
+% 
+% 鍚勪釜绯荤粺鐨勯粯璁ゅ瓧浣撹鍙傝€冦€傚彲浠ョ湅鍒帮紝涓嶅悓绯荤粺涓婁娇鐢ㄧ殑瀛椾綋鏈夋墍宸埆锛屽疄闄呰緭鍑虹粨鏋滃彲鑳藉瓨鍦ㄧ粏寰笉鍚�, 浣跨敤鏃惰娉ㄦ剰銆備緥濡傦紝鍦↙inux骞冲彴鎴栬€呬娇鐢ㄤ簡Ubuntu鍚庣鐨勫崡澶hologo{TeX}涓婏紝瀹嬩綋鍔犵矖鏁堟灉鏇存槑鏄撅紱鍙︿竴鏂归潰锛屽湪Windows骞冲彴杩涜缂栬瘧鐨勬晥鏋滄洿鎺ヨ繎Word鍔犵矖\footnote{鍥犱负SimSun娌℃湁鍘熺敓绮椾綋锛岄€氳繃AutoFakeBold=2.17杩涜妯′豢}锛岀鍚堣瑙変範鎯€�
+% 
 % \end{function}
 %
 %
@@ -521,8 +535,9 @@ through XeTeX.
 %
 % \begin{implementation}
 %
-% \section{\pkg{njuthesis} 浠g爜瀹炵幇}
+% \section{浠g爜瀹炵幇}
 %
+% laTex榛樿1.2琛岃窛锛寃ord榛樿琛岃窛鏄�1.3锛岃姹�1.5鍊峸ord琛岃窛锛屾晠1.5/1.2*1.3 = 1.625
 %    \begin{macrocode}
 %<*class>
 \LoadClass[
@@ -530,7 +545,7 @@ through XeTeX.
   twoside,
   UTF8,
   scheme=chinese,
-  linespread=1.625,% laTex榛樿1.2琛岃窛锛寃ord榛樿琛岃窛鏄�1.3锛岃姹�1.5鍊峸ord琛岃窛锛屾晠1.5/1.2*1.3 = 1.625
+  linespread=1.625,
   fontset=none,
   zihao=-4
   ]{ctexbook}[2018/04/01]
@@ -733,7 +748,13 @@ through XeTeX.
 % 鐢ㄤ簬鐢熸垚鍙互琚彃鍏ヤ功绛剧殑LaTeX logo锛孴ODO 浣跨敤hologo鍒涘缓|latex{}|鍛戒护
 %    \begin{macrocode}
 \RequirePackage{hologo} 
-% \RequirePackage{needspace} % Required to prevent page break right after a sectioning command
+%    \end{macrocode}
+%
+% Put text here.
+%    \begin{macrocode}
+% Required to prevent page break right after a sectioning command
+% \RequirePackage{needspace} 
+
 % \RequirePackage{xspace} % Better print trailing whitespace
 %    \end{macrocode}
 %
@@ -859,14 +880,16 @@ through XeTeX.
   \setCJKfamilyfont{zhhei}{SimHei}
   \setCJKfamilyfont{zhfs}{FangSong}
   \setCJKfamilyfont{zhkai}{KaiTi}[AutoFakeBold=2.17]
-  \setCJKfamilyfont{zhnewhei}{Microsoft~YaHei}[BoldFont=Microsoft~YaHei~Bold]
+  \setCJKfamilyfont{zhnewhei}{Microsoft~YaHei}[
+    BoldFont=Microsoft~YaHei~Bold]
 }
 %    \end{macrocode}
 %
 % Put text here.
 %    \begin{macrocode}
 \NewDocumentCommand\set_chinese_fontset_macos{}{
-  \msg_redirect_name:nnn {fontspec} {no-script} {info} % 绉婚櫎 does not contain script "CJK" 璀﹀憡
+  % 绉婚櫎 does not contain script "CJK" 璀﹀憡
+  \msg_redirect_name:nnn {fontspec} {no-script} {info} 
   \setCJKmainfont{Songti~SC~Light}[
     BoldFont=Songti~SC~Bold,
     ItalicFont=Kaiti~SC,
@@ -894,7 +917,8 @@ through XeTeX.
 % Put text here.
 %    \begin{macrocode}
 \NewDocumentCommand\set_chinese_fontset_fandol{}{
-  \msg_redirect_name:nnn {fontspec} {no-script} {info} % 绉婚櫎 does not contain script "CJK" 璀﹀憡
+  % 绉婚櫎 does not contain script "CJK" 璀﹀憡
+  \msg_redirect_name:nnn {fontspec} {no-script} {info} 
   \setCJKmainfont{FandolSong-Regular}[
     Extension=.otf,
     BoldFont=FandolSong-Bold,
@@ -920,9 +944,6 @@ through XeTeX.
 %    \begin{macrocode}
 % 鏂规瀛楃闆�
 \NewDocumentCommand\set_chinese_fontset_founder{}{
-  % FZSSK 鏂规涔﹀畫锛堢畝绻佹墿灞曪級 http://www.foundertype.com/index.php/FontInfo/index/id/151 鍏嶈垂鍟嗙敤
-  % FZXBSK 鏂规灏忔爣瀹嬶紙绠€绻佹墿灞曪級 http://www.foundertype.com/index.php/FontInfo/index/id/164 璁捐甯堥潪鍟嗗厤璐�
-  % FZKTK 鏂规妤蜂綋锛堢畝绻佹墿灞曪級 http://www.foundertype.com/index.php/FontInfo/index/id/137 鍏嶈垂鍟嗙敤
   \setCJKmainfont{FZSSK}[
     Extension=.ttf,
     BoldFont=FZXBSK,
@@ -1765,7 +1786,10 @@ through XeTeX.
     \cleardoublepage
   }
 }
-
+%    \end{macrocode}
+%
+% Put text here.
+%    \begin{macrocode}
 % 鏈灏侀潰
 \tl_set:Nn \nju_printcover_ug 
 {
@@ -1796,7 +1820,10 @@ through XeTeX.
   % \vfill
   % \newpage
 }
-
+%    \end{macrocode}
+%
+% Put text here.
+%    \begin{macrocode}
 % 鐮旂┒鐢熷皝闈�
 \tl_set:Nn \nju_printcover_g 
 {
@@ -1848,7 +1875,10 @@ through XeTeX.
   \end{spacing}
   \cleardoublepage
 }
-
+%    \end{macrocode}
+%
+% Put text here.
+%    \begin{macrocode}
 % 閲嶅畾涔塵aketitle鐢熸垚灏侀潰
 \tl_set:Nn \maketitle 
 {%
@@ -1864,7 +1894,8 @@ through XeTeX.
 }
 %    \end{macrocode}
 %
-% Put text here.
+% \subsection{鎽樿缁樺埗}
+%
 %    \begin{macrocode}
 % 鍒ゆ柇瀛︿綅
 \str_if_eq:NNTF {\nju_degree} { ug } 
@@ -1877,7 +1908,8 @@ through XeTeX.
     % \phantomsection\addcontentsline{toc}{chapter}{涓枃鎽樿} % 灏嗘憳瑕佹彃鍏ョ洰褰曞拰pdf涔︾
     \pdfbookmark[0]{涓枃鎽樿}{涓枃鎽樿} % 灏嗘憳瑕佹彃鍏df涔︾锛屼笌涓婁竴琛屼笉鍙叡瀛�
     \begin{center}
-      \kaishu\zihao{-2}{\textbf{\uuline{鍗椾含澶у鏈鐢熸瘯涓氳鏂囷紙璁捐銆佷綔鍝侊級涓枃鎽樿}}}
+      \kaishu\zihao{-2}{\textbf{\uuline{
+        鍗椾含澶у鏈鐢熸瘯涓氳鏂囷紙璁捐銆佷綔鍝侊級涓枃鎽樿}}}
     \end{center}
     {\bgroup
       \kaishu\zihao{-4}
@@ -1910,7 +1942,8 @@ through XeTeX.
     % \phantomsection\addcontentsline{toc}{chapter}{鑻辨枃鎽樿} % 灏嗘憳瑕佹彃鍏ョ洰褰曞拰pdf涔︾
     \pdfbookmark[0]{鑻辨枃鎽樿}{鑻辨枃鎽樿} % 灏嗘憳瑕佹彃鍏df涔︾锛屼笌涓婁竴琛屼笉鍙叡瀛�
     \begin{center}
-        \kaishu\zihao{-2}{\textbf{\uuline{鍗椾含澶у鏈鐢熸瘯涓氳鏂囷紙璁捐銆佷綔鍝侊級鑻辨枃鎽樿}}}
+        \kaishu\zihao{-2}{\textbf{\uuline{
+          鍗椾含澶у鏈鐢熸瘯涓氳鏂囷紙璁捐銆佷綔鍝侊級鑻辨枃鎽樿}}}
     \end{center}
     {
       \bgroup
@@ -1934,6 +1967,10 @@ through XeTeX.
     {KEYWORDS{:}}~~{#1}%
   }
 }
+%    \end{macrocode}
+%
+% Put text here.
+%    \begin{macrocode}
 { 
   % 鐮旂┒鐢熸憳瑕佺幆澧�
   \NewDocumentEnvironment{abstract} {}
@@ -1943,7 +1980,8 @@ through XeTeX.
     % \phantomsection\addcontentsline{toc}{chapter}{涓枃鎽樿} % 灏嗘憳瑕佹彃鍏ョ洰褰曞拰pdf涔︾
     \pdfbookmark[0]{涓枃鎽樿}{涓枃鎽樿} % 灏嗘憳瑕佹彃鍏df涔︾锛屼笌涓婁竴琛屼笉鍙叡瀛�
     \begin{center}
-      \kaishu\zihao{-2}{\textbf{\uuline{鍗椾含澶у鐮旂┒鐢熸瘯涓氳鏂囦腑鏂囨憳瑕侀椤电敤绾竲}}
+      \kaishu\zihao{-2}{\textbf{\uuline{
+        鍗椾含澶у鐮旂┒鐢熸瘯涓氳鏂囦腑鏂囨憳瑕侀椤电敤绾竲}}
     \end{center}
     
     \bgroup
@@ -1976,7 +2014,8 @@ through XeTeX.
     % \phantomsection\addcontentsline{toc}{chapter}{鑻辨枃鎽樿} % 灏嗘憳瑕佹彃鍏ョ洰褰曞拰pdf涔︾
     \pdfbookmark[0]{鑻辨枃鎽樿}{鑻辨枃鎽樿} % 灏嗘憳瑕佹彃鍏df涔︾锛屼笌涓婁竴琛屼笉鍙叡瀛�
     \begin{center}
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