Cemf
abbr. 反电动势（Counter Electromotive Force）
🗣️ 情景例句
Thank you.
谢谢你。
What's the area of the Congo in square miles?
在平方英里内刚果的范围是什么？
Other types of bee make their nests in holes in the ground.
其他种类的蜂在地穴里筑巢。