Upgradable
a. 能提到更高一级标准的(=upgradeable)
🗣️ 情景例句
After you.
请先走。
My underwear is black.
我的内衣是黑色的。
Before she grew old, Aunt Harriet used to entertain lavishly.
哈丽特姑妈年轻时，喜欢大摆宴席，招待宾客。