E.m.f.
[医] 电动势, 红细胞成熟因子
🗣️ 情景例句
Where's the campus cafeteria?
校园的食堂在哪儿？
No one can call back yesterday.
往日不复返。
The officer in the control tower was very angry when he heard the news,
控制塔上的官员得知这一消息后，非常气愤，