Bcf
[医][=bacterial chemotactic factor]细菌趋化性因子
🗣️ 情景例句
What time do you usually get up in the morning?
你早上通常几点起床？
From mutual understanding, a comfortable situation has been creation.
由于彼此的了解，因而建立了愉快的关系。
It's nothing serious.You'd better have a good rest.
（病情）不太严重。你最好好好休息一下。