Gub
abbr. generalized upper boundary 模糊上限
✅ 同义词
🗣️ 情景例句
Certainly. Hold on, please.
当然可以，请稍等。
It's about time to get up.
差不多该起床了。
Yes! They're having a good time.
是呀！他们玩得很痛快。