Both the presenter and the audience can annotate the slides by moving the mouse, and then drawing with the pen.

演示者和观众都能用鼠标或绘图笔在幻灯片上添加注释。

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Both the presenter and the audience can annotate the slides by moving the mouse, and then drawing with the pen.

演示者和观众都能用鼠标或绘图笔在幻灯片上添加注释。

youdao