Birefringencemeter
双折射检查仪
🗣️ 情景例句
The Stewarts are the Stewarts!
这就是Stewart家人的本色！
Trust not a great weight to a slender thread.
细线挂重物，终究不可靠。
I hope you are well. Thank you for your last letter.
愿你身体健康。感谢你上次来信。