Then Luby and Zhang begin to perform.

然后Luby和Zhang开始表演。

After getting their piano ready, Zhang and Luby get into the Concert Truck.

准备好钢琴后，张和卢比进入音乐会卡车。

Luby does the same, especially on the days when the two musicians are to perform.

卢比也是如此，尤其是在两位音乐家要演出的日子里。

Zhang says the concert truck idea was Luby's.

张说音乐会卡车的想法是卢比的。