Alternating e.m.f.
[电] 交变电势
🧩 词语组成解析
a. 交互的\\n[医] 交替的
[医] 电动势, 红细胞成熟因子
🗣️ 情景例句
Scene: Tom and his wife have invited Carl and David for dinner.
场景：汤姆和他夫人邀请卡尔和大卫吃晚饭。
I'm going to take four boxes.
我要拿四盒。
You must have been driving at seventy miles an hour.
你刚才一定是以每小时70英里的速度开车。