minor

ChapterAcknowledgement/acknowledgement.tex

@@ -26,7 +26,7 @@
 {\color{white} 空}
 {\color{white} 空}
 \vspace{1em}
 \vspace{1em}
 \begin{center}
 \begin{center}
-{\Huge \bfnew{后记}}
+{\Huge \bfnew{后\ \ \ 记}}
 \end{center}
 \end{center}
 \vspace{2em}
 \vspace{2em}