Pcd
abbr. 节圆直径（Pitch Circle Diameter）；巴拿马运河局（Panama Canal Department）
🗣️ 情景例句
He always seems such a happy guy.
他似乎永远是个快乐的人。
That which was bitter to endure may be sweet to remember.
苦楚往日难忍受，记起也许甜心头。
Why not?
为什么不去？