Optronics
光电子学, 光导发光学
🗣️ 情景例句
I don't believe in cyber romance.
我不相信网络情缘。
Better have something we can get our hands on rather than just spend all our time talking.
有些实际材料拿到手总比坐着闲聊强。
I started to sing. The baby watched and listened ,and she didn't cry any more.
我开始唱歌。小孩看着，听着，不再哭了。