Optoelectronics
[计] 光电子学
🗣️ 情景例句
Keep a small English dictionary with you at all time.
随身携带一本小英文字典。
I hope you can have an enjoyable time on your trip.
我希望你的旅途有个愉快的时光。
modern states 'invest'in institutions of learning to get back 'interest'
现代国家对教育机构投资，收回的"利息