Upgrading
v. 升级；提高品位（upgrade的现在分词）
✅ 同义词
🔴 反义词
🗣️ 情景例句
Please look us up.
请和我们联络。
$19.00 a day or $129.00 a week, unlimited mileage.
一天19美元，一周129美元，不计车程。
This case doesn't belong to me!You've given me the wrong case!
这箱子不是我的！您给错了！