Birefringencemeter
双折射检查仪
🗣️ 情景例句
Lillian and I were married two weeks ago in Detroit. Lillian
和我已经在两周前在Detroit结婚了。
How often did I tell you to keep quiet?
我告诉你多少次要安静?
The glasses keep their eyes safe.
眼镜可以使眼睛不受伤害。