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
So would I.
我也是。
To worry about tomorrow is to be unhappy today.
担心明天，今天就不愉快了。
We can't sign the contract yet.
我们还不能在契约上签字。