Fif
[醫(yī)][=feedback inhibition factor]反饋抑制因子
??? 情景例句
All the girls know he's a womanizer.
所有的女孩兒都知道他和許多女孩兒有關(guān)系。
He is in conference.
他正在開會。
Oh, it's a short ruler. Who has a long one?
噢，這是把短尺。誰有長尺？