Bfk
abbr. Becker-Fulde-Keller theory 贝克尔-富尔德-凯勒理论; bovine fetal kidney 牛胎肾
🗣️ 情景例句
Would you please try to keep quiet at this hour?
这么晚了，你能不能尽量保持安静。
Did you have a good day today?
你今天过得好吗？
I not only spoke English very carefully, but very clearly as well.
我的英语讲得不但非常认真，而且咬字也非常清楚。