Prdc
abbr. Polar Research and Development Center <美>（陆军）极地研究发展中心
🗣️ 情景例句
You're home from school early.
你今天从学校回来得早。
May I ask you for a dance?
可以请你跳支舞吗？
The winch was again put into operation and one of the men started up the truck.
绞盘机再次启动，一位工人发动了急修车的引擎。