【新一代大学英语（发展篇）视听说教程1】Unit5：5-2（2）Travel agent or not？

[视频作者] 行所当行

[视频时长] 10:7

[视频类型] 校园学习

答案： seat availability last-minute schedule changes complex time the best fares the fare class seat and meal the Internet twice leads the region outliers