Upgrading
v. 升级；提高品位（upgrade的现在分词）
✅ 同义词
🔴 反义词
🗣️ 情景例句
My last name is Chen. C-H-E-N.
我姓陈，C-H-E-N。
I wrote novels yesterday.
我昨天在写小说。
He suggested a picnic.
他建议搞一次野餐。