Bcs
[计] 基本通信支持, 基本控制系统, 主控系统, 块检验序列, 商用计算机系统
🗣️ 情景例句
I was. I came back here last month on vacation.
本来是，不过上个月回来度假。
Do you often study history on Saturday?
你常常在星期六学历史吗？
The weather's often cold in North and windy in the East.It's often wet in the West,and sometimes warm in the south.
北部的天气常常寒冷，东部则常常利风。西部常下雨，南部有时则很暖和。