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
Lacks maturity.
不成熟。
The worth of a thing is best known by the want of it.
物以稀为贵。
Sorry! I won't do it again.
对不起！我不会再这样了。