Pcd
abbr. 节圆直径（Pitch Circle Diameter）；巴拿马运河局（Panama Canal Department）
🗣️ 情景例句
I hope you have a wonderful time
希望你们玩得开心
I asked him to check it for me, but he wouldn't.
我请他帮我检查，但是他不肯。
The answer is zero.
白忙了。