Batf
abbr. 烟酒火器管理局（Bureau of Alcohol Tobacco and Firearms）
🗣️ 情景例句
get some background on the job.
了解这项工程的一些背景。
As long as it doesn't snow!
只要不下雪就行啊！
Reading is only a partial solution,
看书只能解决部分问题。