Because after that they use a machine to make the paper and we can put that right in the centre of the flow-chart.

因为在这之后会用机器造出纸张，我们可以把这个步骤放在流程图的中间。

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Construct a flow chart to make a robot cross a road.

绘制一个程序框图，表明一台机器人横过马路。

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Construct a flow chart to make a robot cross a road.

绘制一个程序框图，表明一台机器人横过马路。

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