Optical constant
[计] 光学常数
🧩 词语组成解析
🗣️ 情景例句
Exactly what do you want from me, Mrs. Stewart?
究竟对我有什么要求， Stewart太太？
Misers put their back and their belly into their pockets.
爱财如命。
John works very hard. He goes to work early.
约翰工作很努力。他早早上班。