Fiberoptronics
纤维光电子学
🗣️ 情景例句
I can't believe it!
我简直不敢相信！
I did it without much difficulty.
我没费多少劲就完成了那项工作。
I left a suitcase on the train to London the other day.
几天前我把一只手提箱忘在开往伦敦的火车上了。