Upgradable
a. 能提到更高一级标准的(=upgradeable)
🗣️ 情景例句
If you're not sure, then the answer should probably be no.
如果你不确定，那么答案可能就是“不”了。
A maid that laughs is half taken.
少女露笑脸，婚事半成全。
Be careful!
注意！