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Last week, my friend Liu Lei came round with a new computer game and asked to play it on my dad's computer.

上周，我的朋友刘磊带了一个新的电脑游戏来，并要求在我爸爸的电脑上玩。

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The designers had to create designs for a handheld tablet computer, with pen input. Most of them had never designed a computer before.

设计师们需要创作一种手持式笔输入平板电脑的设计，他们中的大多数甚至从未设计过电脑。

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Chess is a controlled environment in which the computer is presented with a situation and a goal, and the computer must find possibilities and make decisions to achieve that goal.

国际象棋是一个受控的环境，计算机在其中有一个处境和一个目标，计算机必须寻找达到目标的可能性并对此作出判断。