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[医][=B cell differentiation factor]B细胞分化因子
🗣️ 情景例句
Thank you for inviting me.
谢谢你的感情邀请。
I'd like to change this ticket to the first class.
我想把这张票换成头等车。
But having satisfied the requirements of practical necessity, most people go no further.
但是，大部分人在满足了实际需要后，就不再继续发展这种能力了。