Electromagnetics spectrum
[电] 电磁光谱
🧩 词语组成解析
n. 电磁学\\n[计] 电磁学
🗣️ 情景例句
My boss does everything by the book.
我们老板一切照章办事。
He has been to America.
他去过美国。[曾经有过的经验]
He suddenly appeared in the party.
他突然在晚会上出现了。