\documentclass[12pt, twoside, openright]{book}
\input{packages}
\begin{document}
% cover page
\input{frontpages/cover.tex}
% validation letter page
\pagenumbering{roman}
\input{frontpages/validation_letter.tex}
% acknowledgment page
\input{frontpages/acknowledgement.tex}
% chinese abstract
\input{frontpages/chi_abstract.tex}
% english abstract
\input{frontpages/en_abstract.tex}
% table of contents
\tableofcontents
\watermark
\clearpage
% table of figures
\listoffigures
\clearpage
% table of tables
\listoftables
\let \cleardoublepage \clearpage
% main body section
\mainmatter
% introduction
\input{sections/introduction.tex}
% related work
\input{sections/related_work.tex}
% method
\input{sections/method.tex}
% experiments
\input{sections/experiments.tex}
% conclusion
\input{sections/conclusion.tex}
% Reference
\input{backpages/bibliography.tex}
% Appendix
\input{backpages/appendix.tex}
\end{document}