One fax machine in the world can do nothing, but if everyone has one, they build an increasingly efficient network of communications.
如果世界上只有一台传真机没什么用，但是如果每人一台，它们就会成为一个有效的传播网络。
One fax machine in the world can do nothing, but if everyone has one, they build an increasingly efficient network of communications.
如果世界上只有一台传真机没什么用，但是如果每人一台，它们就会成为一个有效的传播网络。
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