M-s
abbr. minerals separation 选矿; Monday through Saturday 周一到周六; master-slave (flip-flop) 主-从（触发器）; Material Service (division of General Dynamics) 物资服务部（普通力学分科）
🗣️ 情景例句
I could tell something was up by the look on their faces.
我一看他们的脸色就知道有事。
What's bugging you?
你在烦什么？
OK. Who's first? Ma Lili!
好。第一个是谁？马莉莉！