And it is all right to draw a line down the middle of the room.
即使你在卧室中间划一条分界线也没关系。
Write your answer on a piece of paper and draw a line down the center of the page.
把你的回答写在一张纸上并且沿中心划一条直线。
Draw a vertical line down the center of your notebook paper.
在笔记本的一页的中间划一条竖线。
Just draw a vertical line down the middle of a blank page.
拿出一张空白的纸，在中间画一条竖线。
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。
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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