Vdc
abbr. 志愿保卫队（Volunteer Defence Corps）；血管舒张中枢（Vasodilator Centre）；电压-数字变换器（Voltage-to-Digital Converter）
🗣️ 情景例句
You were right, Grandpa.
给你说对了 ，爷爷。
Last month was December,wasn't it ?
上个月是十二月，对不对？
Burglar alarms going off at any time of the day or night serve only to annoy passers-by and actually assist burglars to burgle.
防盗警报器在白天和黑夜的任何时候都会响起来，它的作用只是骚扰过路行人，而实际上却帮助窃贼入室行窃。