Upgradeability
n. 可升级性；升级功能
🗣️ 情景例句
I'd appreciate that.
谢谢你让我使用电话。
Many happy returns of the day.
祝您长寿。
The Ambassador's wife went on asking questions, when she suddenly noticed a big hole in her husband's hat.
大使夫人继续提出问题，她突然又发现丈夫的帽子上有个洞。