Optronics
光电子学, 光导发光学
🗣️ 情景例句
OK. I understand. Thank you.
好吧，我懂了，谢谢你。
New brooms sweep clean.
新官上任三把火。
Most people believe that the strike will last for at least a week.
多数人认为此次罢工至少会持续一个星期。