Birefraction
双折射
🗣️ 情景例句
Michelle knows all about it.
Michelle已经全知道了。
Tom graduated from college at a very young age.
汤姆很年轻就从大学毕业了。
How extraordinary! I said. I think someone has been carving animals.
“多么神奇啊！”我说，“我想有人一直在刻这些动物。”