Forescatter
前向散射; 前向散射器
🗣️ 情景例句
Who is it?
是谁呀？
That's a bad idea if I've ever heard one!
你出这什么馊主意！
This is a kind of printing that blind people can read by touching groups of raised points that are printed on paper.
布莱叶盲文是一种印刷字体，盲人通过摸印在纸上起的点点来读书。