Optronics
光电子学, 光导发光学
🗣️ 情景例句
Well, glad to meet you.
是吗，很高兴认识你。
He that boasts of his own knowledge proclaims ignorance.
夸耀知识实乃无知。
Yes. I have everything ready here.
是的。我把一切都准备好了。