Prdc
abbr. Polar Research and Development Center <美>（陆军）极地研究发展中心
🗣️ 情景例句
Sure, anything you say.
当然，你说什么就是什么。
If you run after two heares, you will catch neither.
两头落空。
If I were you, I wouldn't have bought that vase.
如果我是你，我就不买那花瓶。