Gub
abbr. generalized upper boundary 模糊上限
✅ 同义词
🗣️ 情景例句
What was your best subject in college?
大学时你哪门功课最好？
He seems very serious, but in fact he has a delightful sense of humor.
他看上去很严肃，其实很诙谐。
What can I eat? asked Mrs Brown.
“吃什么才行呢？”布朗夫人问。