Oo
abbr. 面向对象程式设计（Object Oriented）；已订购而尚未交货的（on order）
🗣️ 情景例句
Where was the house?
房子在什么地方？
OK. That'll be $12.00, please.
到了。请付12美元。
The whole world knows that.
全世界都知道。