diff --git a/elegantpaper-en.pdf b/elegantpaper-en.pdf
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Binary files /dev/null and b/elegantpaper-en.pdf differ
diff --git a/elegantpaper-en.tex b/elegantpaper-en.tex
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--- a/elegantpaper-en.tex
+++ b/elegantpaper-en.tex
@@ -60,7 +60,7 @@ \subsection{Font Settings}
 \end{lstlisting}
 
 \subsubsection{Other Settings}
-These packages operate perfectly but are inappropriate for big operators, for example \lstinline{\sum} and \lstinline{\prod}, thus, I change these operators back to computer modern font. Equation~(\eqref{eq:binom}) shows the effects of these fonts:
+These packages operate perfectly but are inappropriate for big operators, for example \lstinline{\sum} and \lstinline{\prod}, thus, I change these operators back to computer modern font. Equation~\eqref{eq:binom} shows the effects of these fonts:
 \begin{equation}
 (a+3b)^{n} = \sum_{k=0}^{n} C_{n}^{k} a^{n-k} (3b)^k  \label{eq:binom}
 \end{equation}