Upgradable
a. 能提到更高一级标准的(=upgradeable)
🗣️ 情景例句
It was a pleasure having you. Please come again.
和你在一起我们非常荣幸，请有空常来。
Whatever he does, don't be mad.
不管他做什么，你都不要发怒。
He gets back home at a quarter past five.
15回到家。