Here is a typical problem的意思|示意

有一个关于电梯系统设计的经典问题 ...Here is a typical problem: A passenger on the sixth floor wants to descend. The closest car is on the seventh floor, but it already has three riders and has made two stops. Is it the right choice to make that car stop again? That would be the best result for the sixth-floor passenger, but it would make the other people's rides longer. 有一个关于电梯系统设计的经典问题：六楼的人想乘电梯下楼，离他最近的电梯轿厢在七楼，但电梯里已经有三个人，而且已经停过两次。