A zero-sum game is a type of game wherein one player can gain only at the expense of another player.

零和游戏是一种一个玩家只能在另一个玩家输的情况下获赢的游戏。

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Washington sees Social Security reform as a zero-sum gain-if someone gains, someone else loses.

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We have demonstrated, as no other economy has, that life need not be a zero-sum game, that one person's gain is not necessarily another person's loss.

FORBES: THE EVIL THAT STRUCK US