Upgradeability
n. 可升级性；升级功能
🗣️ 情景例句
It's good to see you so happy.
能看见你如此高兴 ，太好了。
I played card this afternoon.
我今天下午在打牌。
No necessity of making a living away from home results in neglect of children,
人们没有必要离家谋生，所以不会产生孩子无人管的问题，