Upgradation
升级；改善；提高
🗣️ 情景例句
Thanks, no. I do have to go.
谢谢了， 不用。我真的得走了。
Her face tells her joy.
她的脸显示了她的喜悦。
No,you mustn't eat anything until you see the doctor.
不行，看医生之前你不可以吃任何东西。