Opticator
(仪器的)光学系统部分, 光学扭簧测微仪
🏥 医学释义
（仪表的）光学部分
🗣️ 情景例句
Pleasant dreams.
祝你有个好梦。
The feature started at 9 o'clock and ended at 11:30.
放映在9点钟开始了并且将在11:30结束了。
I think that's a good idea.
我认为那是个好主意。