Bsf
abbr. backscatter factor 背（向）散射因素; beta-s-fetoprotein β-S-胎蛋白; bulk shielding facilities 整体屏蔽设备（反应堆）
🗣️ 情景例句
How are you doing?
你怎么样？
I hope no.
我希望不是。
He can't make it today. He has to stay at home.
他今天不行了。他得呆在家里。