在文档设计窗口的侧面位置，有一个很宽的工具栏。

The wide toolbar positioned to one side of the Document Design Window.

youdao

已打开了控件的设计器。若要使用该控件，必须先关闭其设计器(设计窗口)。

This control's designer is open. To use the control, you must first close its designer (design window).

youdao

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.

youdao

You at this point don't see what I'm seeing because I haven't hit this button, but now you'll actually see that I've brought up a terminal window.

在这里你们没看到我所看到的,因为我还么有点击这个按钮，但是现在你们的确看到了,我设计了一个终端窗口。

哈佛公开课 - 计算机科学课程节选