First, draw a horizontal line.

首先，画一条水平线。

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Draw a horizontal line across the bottom of the page.

在此页底部画一条水平线。

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Step 6: From this point draw a vertical line down to the horizontal axis.

步骤6：从这一点划垂线向下与横轴相交。

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Step 6: From this point draw a vertical line down to the horizontal axis.

步骤6：从这一点划垂线向下与横轴相交。

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