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
Then in that spirit let each of us give thanks.
现在本着同样心意，让我们开始感恩。
A policeman pricks up his ears.
一个警察竖起耳朵在认真地听着。
Because the gravity on the Moon's surface is only a sixth of Earth's
由于月球表面的重力仅是地球表面的1/6-