diff --git a/doc/readme/pkuthss-english.patch b/doc/readme/pkuthss-english.patch
index ed463fe..17dcc02 100644
--- a/doc/readme/pkuthss-english.patch
+++ b/doc/readme/pkuthss-english.patch
@@ -26,9 +26,23 @@ index 4af4d39..09de33d 100644
  
  % vim:ts=4:sw=4
 diff --git a/doc/example/chap/chap1.tex b/doc/example/chap/chap1.tex
-index 85f7008..da8c177 100644
+index 3d631f3..6e46b13 100644
 --- a/doc/example/chap/chap1.tex
 +++ b/doc/example/chap/chap1.tex
+@@ -1,7 +1,7 @@
+ % Copyright (c) 2014,2016,2018 Casper Ti. Vector
+ % Public domain.
+ 
+-\chapter{引言}
+-\pkuthssffaq % 中文测试文字。
++\chapter{Introduction}
++Test text.
+ 
+ % vim:ts=4:sw=4
+diff --git a/doc/example/chap/chap2.tex b/doc/example/chap/chap2.tex
+index 85f7008..da8c177 100644
+--- a/doc/example/chap/chap2.tex
++++ b/doc/example/chap/chap2.tex
 @@ -1,7 +1,7 @@
  % Copyright (c) 2014,2016 Casper Ti. Vector
  % Public domain.
@@ -39,17 +53,17 @@ index 85f7008..da8c177 100644
 +Test text.
  
  % vim:ts=4:sw=4
-diff --git a/doc/example/chap/concl.tex b/doc/example/chap/concl.tex
-index 93941bc..a472892 100644
---- a/doc/example/chap/concl.tex
-+++ b/doc/example/chap/concl.tex
+diff --git a/doc/example/chap/chap3.tex b/doc/example/chap/chap3.tex
+index ed66f12..ae221d6 100644
+--- a/doc/example/chap/chap3.tex
++++ b/doc/example/chap/chap3.tex
 @@ -1,7 +1,7 @@
- % Copyright (c) 2014,2016 Casper Ti. Vector
+ % Copyright (c) 2014,2016,2018 Casper Ti. Vector
  % Public domain.
  
--\specialchap{结论}
+-\chapter{结论和展望}
 -\pkuthssffaq % 中文测试文字。
-+\specialchap{Conclusion}
++\chapter{Conclusion}
 +Test text.
  
  % vim:ts=4:sw=4
@@ -64,20 +78,6 @@ index 9834829..4296e9a 100644
 -\chapter{附件}
 -\pkuthssffaq % 中文测试文字。
 +\chapter{Some appendix}
-+Test text.
- 
- % vim:ts=4:sw=4
-diff --git a/doc/example/chap/intro.tex b/doc/example/chap/intro.tex
-index c0e033e..7c1920f 100644
---- a/doc/example/chap/intro.tex
-+++ b/doc/example/chap/intro.tex
-@@ -1,7 +1,7 @@
- % Copyright (c) 2014,2016 Casper Ti. Vector
- % Public domain.
- 
--\specialchap{序言}
--\pkuthssffaq % 中文测试文字。
-+\specialchap{Introduction}
 +Test text.
  
  % vim:ts=4:sw=4
@@ -100,7 +100,7 @@ index ac5b0c9..9d2ad60 100644
 -
  % vim:ts=4:sw=4
 diff --git a/doc/example/thesis.tex b/doc/example/thesis.tex
-index a96cb1e..0080051 100644
+index d7a575f..baed091 100644
 --- a/doc/example/thesis.tex
 +++ b/doc/example/thesis.tex
 @@ -14,53 +14,44 @@
@@ -174,13 +174,13 @@ index a96cb1e..0080051 100644
 -
 -	如果编译时不出参考文献，
 -	请参考 \texttt{texdoc pkuthss}“问题及其解决”一章
--	“上游宏包可能引起的问题”一节中关于 biber 的说明。
+-	“上游宏包可能引起的问题”一节中关于 biber 的说明。%
 -}
 -
  \begin{document}
  	% 以下为正文之前的部分，默认不进行章节编号。
  	\frontmatter
-@@ -96,7 +87,7 @@
+@@ -94,7 +85,7 @@
  	\appendix
  	% 排版参考文献列表。bibintoc 选项使“参考文献”出现在目录中；
  	% 如果同时要使参考文献列表参与章节编号，可将“bibintoc”改为“bibnumbered”。
@@ -215,19 +215,19 @@ index c2c951b..d453918 100644
  \def\label@ckeywords{关键词：}
  \def\label@ekeywords{KEYWORDS:\ }
 diff --git a/tex/pkuthss.cls b/tex/pkuthss.cls
-index 383965c..40a8ae3 100644
+index 6208799..a785d69 100644
 --- a/tex/pkuthss.cls
 +++ b/tex/pkuthss.cls
-@@ -286,7 +286,7 @@
- 		\fancyhf{}\renewcommand*{\headrulewidth}{0.75bp}
- 		\fancyfoot[C]{\zihao{5}\normalfont{\thepage}}
- 		\if@twoside
--			\fancyhead[CE]{\zihao{5}\normalfont{\cuniversity\cthesisname}}
-+			\fancyhead[CE]{\zihao{5}\normalfont{{\euniversity} {\ethesisname}}}
- 			\fancyhead[CO]{\zihao{5}\normalfont\pkuthss@int@setcase{\leftmark}}
- 		\else
- 			\fancyhead[C]{\zihao{5}\normalfont\pkuthss@int@setcase{\leftmark}}
-@@ -354,13 +354,13 @@
+@@ -300,7 +300,7 @@
+ 	\fancyhf{}\renewcommand*{\headrulewidth}{0.75bp}
+ 	\fancyfoot[C]{\zihao{5}\normalfont{\thepage}}
+ 	\if@twoside
+-		\fancyhead[CE]{\zihao{5}\normalfont{\cuniversity\cthesisname}}
++		\fancyhead[CE]{\zihao{5}\normalfont{{\euniversity} {\ethesisname}}}
+ 		\fancyhead[CO]{\zihao{5}\normalfont\thss@int@setcase{\leftmark}}
+ 	\else
+ 		\fancyhead[C]{\zihao{5}\normalfont\thss@int@setcase{\leftmark}}
+@@ -349,13 +349,13 @@
  				\zihao{1}%
  				\includegraphics[height = 2.4em]{pkulogo}\hspace{0.4em}%
  				\raisebox{0.4em}{\includegraphics[height = 1.6em]{pkuword}}\\[0.8em]
@@ -238,38 +238,38 @@ index 383965c..40a8ae3 100644
  			% Title of the thesis.
  			{%
  				\zihao{2}{\label@ctitle}%
--				\pkuthss@int@fillinblank{2}{0.64\textwidth}{\textbf{\@ctitle}}%
-+				\pkuthss@int@fillinblank{2}{0.64\textwidth}{\textbf{\@etitle}}%
+-				\thss@int@fillinblank{2}{0.64\textwidth}{\textbf{\@ctitle}}%
++				\thss@int@fillinblank{2}{0.64\textwidth}{\textbf{\@etitle}}%
  			}
  			\vfill
  			% Information about the author.
-@@ -368,19 +368,19 @@
+@@ -363,19 +363,19 @@
  				% Slightly adjust the line skip when using new font size.
  				\zihao{3}\linespread{1.75}\selectfont
- 				\def\pkuthss@tmp@len{0.56\textwidth}
+ 				\def\thss@tmp@len{0.56\textwidth}
 -				\begin{tabular}{l@{\extracolsep{0.2em}}c}
 -					{\bfseries\label@cauthor}		&
--					\pkuthss@int@fillinblank{1}{\pkuthss@tmp@len}{\fangsong\@cauthor}		\\
+-					\thss@int@fillinblank{1}{\thss@tmp@len}{\fangsong\@cauthor}		\\
 -					{\bfseries\label@studentid}	&
 +				\begin{tabular}{c@{\extracolsep{0.2em}}c@{\extracolsep{0.2em}}c}
 +					{\bfseries\label@cauthor}		&	: &
-+					\pkuthss@int@fillinblank{1}{\pkuthss@tmp@len}{\fangsong\@eauthor}		\\
++					\thss@int@fillinblank{1}{\thss@tmp@len}{\fangsong\@eauthor}		\\
 +					{\bfseries\label@studentid}	&	:	&
- 					\pkuthss@int@fillinblank{1}{\pkuthss@tmp@len}{\fangsong\@studentid}	\\
+ 					\thss@int@fillinblank{1}{\thss@tmp@len}{\fangsong\@studentid}	\\
 -					{\bfseries\label@school}		&
 +					{\bfseries\label@school}		&	:	&
- 					\pkuthss@int@fillinblank{1}{\pkuthss@tmp@len}{\fangsong\@school}		\\
+ 					\thss@int@fillinblank{1}{\thss@tmp@len}{\fangsong\@school}		\\
 -					{\bfseries\label@cmajor}		&
--					\pkuthss@int@fillinblank{1}{\pkuthss@tmp@len}{\fangsong\@cmajor}		\\
+-					\thss@int@fillinblank{1}{\thss@tmp@len}{\fangsong\@cmajor}		\\
 -					{\bfseries\label@direction}	&
 +					{\bfseries\label@cmajor}		&	:	&
-+					\pkuthss@int@fillinblank{1}{\pkuthss@tmp@len}{\fangsong\@emajor}		\\
++					\thss@int@fillinblank{1}{\thss@tmp@len}{\fangsong\@emajor}		\\
 +					{\bfseries\label@direction}	&	:	&
- 					\pkuthss@int@fillinblank{1}{\pkuthss@tmp@len}{\fangsong\@direction}	\\
+ 					\thss@int@fillinblank{1}{\thss@tmp@len}{\fangsong\@direction}	\\
 -					{\bfseries\label@cmentor}		&
--					\pkuthss@int@fillinblank{1}{\pkuthss@tmp@len}{\fangsong\@cmentor}		\\
+-					\thss@int@fillinblank{1}{\thss@tmp@len}{\fangsong\@cmentor}		\\
 +					{\bfseries\label@cmentor}		&	:	&
-+					\pkuthss@int@fillinblank{1}{\pkuthss@tmp@len}{\fangsong\@ementor}		\\
++					\thss@int@fillinblank{1}{\thss@tmp@len}{\fangsong\@ementor}		\\
  				\end{tabular}%
  			}
  			\vfill