LaTeX: two figures in one line (两个图片置于同一行)

\begin{figure}
\centering
\begin{minipage}{.33\textwidth}
  \centering
  {\includegraphics[width=0.944\linewidth]{./figures/illustrate_cases.pdf}}
  \captionof{figure}{Common cases where a single \newline distance estimate would fail}
  \label{fig:illustrate_cases}
\end{minipage}
\begin{minipage}{.33\textwidth}
  \centering
  {\includegraphics[width=0.9\linewidth]{./figures/voronoi_illustrate.pdf}}
  \captionof{figure}{Voronoi diagram to represent \newline communication coverage of each tower}
  \label{fig:voronoi}
\end{minipage}
\end{figure}