Optronics
光电子学, 光导发光学
🗣️ 情景例句
I'd like to ask for your daughter's hand in marriage.
我希望你能把女儿许配给我。
Knowledge will not be aquired without pain and application.
不花力气，不下功夫是得不到知识的。
Let's go out to have a dinner, shall we?
咱们出去吃饭吧，好吗？