Figure 7. Case 4. Three-vessel-trachea view showing a double aortic arch (red) surrounding the trachea (anteriorly) and esophagus (posteriorly).是什么意思_Figure 7. Case 4. Three-vessel-trachea view showing a double aortic arch (red) surrounding the trachea (anteriorly) and esophagus (posteriorly).在线翻译_英语_读音_用法_例句