Optronics
光电子学, 光导发光学
🗣️ 情景例句
Didn't we go to school together?
我们以前在一起上过学吗？
Which would you rather have--steak or fish?
你想要牛排还是鱼？
He will blame you for carelessness.
他会责备你的粗心大意。