Bireflectance
双反射, 反射多色(现象)
🗣️ 情景例句
You've met my wife Marilyn ...
你曾经见过我太太Marilyn……
What are you doing talking to my girl friend?
你小子跟我的女人搭讪，居心何在呀？
Now move the hand to and fro and around but not up and down.
然后把手前后左右以及旋转摆动，但不要上下摆动。