Cemf
abbr. 反电动势（Counter Electromotive Force）
🗣️ 情景例句
How do you know so much about fishing?
你对钓鱼怎么知道这么多？
How ofter did I tell you to sit straight?
我告诉你多少次要坐正?
Hi! Nice to meet you, Ling Feng!
很高兴见到你，。