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
Save that for the suckers.
鬼才信你那一套。
We're working fast to try and make up for lost time.
我们正加紧工作以争取补偿失去的时间。
When did you bring it to us?
您什么时候送来的？