Bdf
[医][=B cell differentiation factor]B细胞分化因子
🗣️ 情景例句
Where there's a will, there's a way.
有志者事竟成。
What platform does the train leave from?
这班车从哪个站台开出呢？
The two men quarrelled bitterly and it was clear that the argument could only be settled by a fight.
两个人争吵不休，显而易见，只有较量一番才能解决问题。