Pcn
abbr. parent-country national(s) 祖國人民; printed control number 印刷控制數; processing control number 加工控制數; personal communication network 個人通信網
??? 情景例句
Aren't you hungry, Harry?
你不餓嗎， Harry？
He has not come in yet.
他還沒有來。
The English and Maths papers weren't easy enough for me.
英語和數學試題對我來說不很容易。