这一透明特性可以让我们要叠加角的图像仍可以显示出来。

This transparency will allow the image we are adding the corners to to show through.

youdao

你可以在很多方面利用半透明的优点，其中之一就是使用半透明的颜色叠加到复杂背景时起到特别作用。

While you can take advantage of transparency in countless ways, one area that it has helped particularly is with complex backgrounds overlaid with semi-transparent colors.

youdao

我们所要做的应该是将图片放置在幻灯片的顶层，然后将混合模式设为叠加，再将不透明度设为45%左右。

What we’re going to do instead is set it on top of the colored slide and set our blending mode to Overlay. Then throw your opacity to around 45%.

youdao