Such games typically involve passing an electronic ball back and forth among three players, two of whom are actually a computer program and ignore the test subject after the beginning of the game.

游戏大概是三人传球的形式，其中两个是电脑程序，它们会在游戏开始不久忽略被试者。

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Mobile phone, Computer, Communication equipment, Instrumentation, VCR, Television, Electronic game.

手机、电脑、通讯设备、仪器仪表、摄像机、电视机、电子游戏机等。

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Computer, Communication equipment, Instrumentation, VCR, Television, Electronic game machine, etc.

电脑、通讯设备、仪器仪表、摄像机、电视机、电子游戏机等。

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Then the big boys with global licences arrive: Lego to make construction kits (build your own Hogwarts castle), Mattel to make Harry Potter toys, and Electronic Arts computer games including, finally, a chance to play the obscure game of Quidditch (a bit like an aerial version of polo, but with the contestants flying on broomsticks).

ECONOMIST: Harry Potter and the publishing goldmine