Fif
[医][=feedback inhibition factor]反馈抑制因子
🗣️ 情景例句
All the girls know he's a womanizer.
所有的女孩儿都知道他和许多女孩儿有关系。
He is in conference.
他正在开会。
Oh, it's a short ruler. Who has a long one?
噢，这是把短尺。谁有长尺？