Optoelectronics
[计] 光电子学
🗣️ 情景例句
How about the price list? Does it have a guarantee to go with it?
价格表呢？有没有附保证书呢？
How long will it take to have this radio fixed?
修理这收音机要多久？
I found it on the floor.
在地板上找到的。