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
What does your father do?
你父亲从事什么职业？
I'm going to buy five pieces.
我要买五片。
How it came about that snakes manufactured poison is a mystery.
蛇是怎样产生毒液的，这是一个谜。