Parlor games can certainly be viewed as abstractions of social or economic interactions, but most of these games are zero-sum: the gains of one player are the losses of another.

• 我们当然可以把桌上游戏看成社会或经济互动的抽象表现，只是大多数的棋戏或牌戏都是零和游戏：一方的所得正好是另一方的损失。