A new option has been added to control the specular highlight so that it only appears on the opaque surface and not the transparent surface.

添加一个新的选项去控制镜面高光，这样高光只显示在不透明的表面上，而不是透明的表面上。

youdao

"(Air-sampling devices) collect particles from the air onto a transparent, sticky surface, " the website's FAQ page says.

CNN: What's in a pollen count, anyway?