Computer Bags or Small duffel bags.

电脑包或小行李袋。

Next day, he and his father heard Shorty's motor in the sky and saw the plane approaching. They grabbed their duffel bags.

第二天，他和他的爸爸听到了天空中响起的矬子的飞机声，看到了正在飞过来的飞机。他们拎起了他们的行李袋。