So I'm looking at all points to satisfy 2 X minus Y equal 0. And I'm often... it's often good to start with which point on the horizontal line, on this horizontal line Y is 0.
找寻所有的点满足2X-Y=0.最好从横坐标上的点为起始，横坐标也就是Y=0。
Since horizontal menus are simply lists in a horizontal line, let's start the process with a list.
因为横向菜单只列在一个横向的一行，让我们从一个列表开始这个过程。
Since horizontal menus are simply lists in a horizontal line, let's start the process with a list.
因为横向菜单只列在一个横向的一行，让我们从一个列表开始这个过程。
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