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
You can put it that way.
你可以那样说。
Why are you wearing my sweater?
你为什么穿着我的毛衣？
The cup is clean.
杯子很干净。