Prdc
abbr. Polar Research and Development Center <美>（陆军）极地研究发展中心
🗣️ 情景例句
You don't have a leg to stand on.
你的观点不值一驳。
My brother wants to learn how to speak Chinese.
我的兄弟要去学中国话。
I admire you for sticking to your plans.
我佩服你能坚持你的计划。