Upgrading
v. 升级；提高品位（upgrade的现在分词）
✅ 同义词
🔴 反义词
🗣️ 情景例句
It's a family business, it may not bring in a lot of money, but it keeps the family together.
这是家族生意，虽然不一定可以赚大钱，但可将整个家庭凝聚在一起。
Everything is good in its season.
万物逢时皆美好。
But suppose the earth could be covered with sensors spaced one foot apart,
假设地球上可以布满传感器，每个相隔1英尺，