Smf
abbr. 系统管理程式（system management facilities）
🗣️ 情景例句
I owe my success to my Mom.
我的成功归功于母亲。
But after one week and I still hadn't made a single sale, my heart was in my boots.
但过了一星期还没有做成一笔生意，我感到十分焦急。
Suppose it rains,what shall we do?
万一下雨，我们该怎么办？