Snc
abbr. 立体声噪声控制；镍铬钢（Steel Nickel Chrome）
🗣️ 情景例句
to schedule one hour a week--to start with.
安排一星期一个小时。
Would you please give us a rough idea of the quantity you require?
请告知你方大概要订多少？
Up to now, historians have assumed that calendars came into being with the advent of agriculture, for then man was faced with a real need to understand something about the seasons.
历史学家迄今认为日历是随农业的问世而出现的，因为当时人们面临着了解四季的实际需要，