Upgradeability
n. 可升级性；升级功能
🗣️ 情景例句
He's like a little doll.
他像个小洋娃娃。
How long will I have to wait?
我要等候多久呢？
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。