Prdc
abbr. Polar Research and Development Center <美>（陆军）极地研究发展中心
🗣️ 情景例句
I'd like to talk with you about something troublesome.
我想同你谈点麻烦事。
How much does packing take up of the total cost of the goods?
包装占货物总成本的百分比是多少？
Yes. I suggest taking a lot of vinegar.
是的。我建议多带些醋。