Optron
光导发光元件
🗣️ 情景例句
What is wrong with you?
你怎么啦？
Please don't bother. Thank you just the same.
请不要麻烦了，谢谢。
There were English cars, French cares, German cars.Italian cars.American cars and Japanese cars.
有英国、法国、德国、意大利和日本的汽车。