Optronics
光电子学, 光导发光学
🗣️ 情景例句
What's the starting salary in your company?
在你的公司底薪是多少？
You cannot have two forenoons in the same day.
一日之中不可能有两个上午。
There are rare instances when justice almost ceases to be an abstract concept.
在个别情况下，正义不再是一种抽象概念。