Optron
光导发光元件
🗣️ 情景例句
Why do you want to quit your present company?
那你为什么放弃现在的工作呢？
I'm not from around here.
我不是本地人。
Imagine a railway station, a bus company or a cinema, which many people need to ring to find out the times of trains, buses or films.
想一想，有许多人需要打电话到火车站、汽车公司或电影院，以便弄清火车、汽车的起始时间或电影放映的时间吧。