Optics electron
[电] 电子光学
🧩 词语组成解析
optics
['ɔptiks]
n. 光学;
electron
[i'lektrɔn]
n. 电子;
🗣️ 情景例句
Thank you. Yes, actually Mary and I have been planning this for some time.
谢谢。其实玛丽和我已计划了很久。
A tall tree is struck by lightning.
大树被闪电击中了。
Which book?
哪一本？