A good test to use is go to the back of the room where the furthest audience member would be sitting before you do your presentation. Put on the slide with the smallest sized text.

你可以这么来测试，走到房间的后面，也就是在你演讲时观众坐的最远的位置，打开有最小尺寸文字的幻灯片，如果你不能轻松看清，那么观众也一样。

youdao

A good test to use is go to the back of the room where the furthest audience member would be sitting before you do your presentation. Put on the slide with the smallest sized text.

你可以这么来测试，走到房间的后面，也就是在你演讲时观众坐的最远的位置，打开有最小尺寸文字的幻灯片，如果你不能轻松看清，那么观众也一样。

youdao