Upgradable
a. 能提到更高一级标准的(=upgradeable)
🗣️ 情景例句
He was left in charge of the shop while the manager was away.
经理不在时他负责这个商店。
Excuse me. May I get by?
对不起，我可以上车吗？
I knew that experts from the local museum would soon visit the cave.
我知道本地博物馆的专家会很快到山洞来探访。