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 don't know. It's locked.
不知道， 锁着呢。
What did you do the week before last?
上上星期你干了什么？
I'm going to the shops. I want to buy some food for supper this evening.
我要去商场，想买些东西为晚饭做准备。