So, the dollar group rated a task as more fun than the twenty dollar group.

因此，一美元组认为某项任务比二十美元组更有趣。

So, because they buy all the tickets on the plane, they get a group rate for the flight.

因此，因为他们购买了飞机上的所有机票， 所以他们获得了航班的团体票价。