当第二条命令执行时，SketchUp自动在设计窗口中画出与Edge对象对应的直线。
When the second command executes, SketchUp automatically draws the line corresponding to the Edge object in its design window.
当第二条命令执行时，SketchUp自动在设计窗口中画出与Edge对象对应的直线。
When the second command executes, SketchUp automatically draws the line corresponding to the Edge object in its design window.
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