Pdcs
abbr. parallel digital computing system 并行数字计算系统; power distribution and conditioning system 功率分配与调节系统; processing distribution and control system 处理分配与控制系统; public digital cellular service 公众数字蜂窝电话业务
🗣️ 情景例句
Oh! Good afternoon. Mr. Wilson, I'm sorry, but he's not in. He's gone out on business.
哦，您好！威尔逊先生。很抱歉，他不在家，他出差了。
Once bitten, twice shy.
一次被咬，下次胆小。
What's the meaning of this?
这是什么意思？