Fif
[医][=feedback inhibition factor]反馈抑制因子
🗣️ 情景例句
Mmm-hmm. Thanks.
嗯。谢谢。
To read without reflection is like eating without digestion.
学而不思，犹如食而不化。
Then I arrived home at six o'clock yesterday evening. He telephoned again.But I didn't answer the phone!
后来，我昨晚6点钟回到家里。他又打来电话，但我没接。