Bcf
[医][=bacterial chemotactic factor]细菌趋化性因子
🗣️ 情景例句
I am happy to do it for you.
我很高兴为你们做这件事。
Patience is a plaster for all sores.
忍耐是治疗一切伤痛的药膏。
'I'll tell you where to get off.' answered the conductor.
“我来告诉您在哪儿下车，”售票员回答说。