Upgradable
a. 能提到更高一级标准的(=upgradeable)
🗣️ 情景例句
but I'm restless.
但我闲不住。
Anger is a short madness.
发火是短暂的疯狂。
At the age of twelve years, the human body is at its most vigorous.
人体在12岁时是生命力最旺盛的时期。