Ub
[计] 上限
🗣️ 情景例句
Keep out of what doesn't concern you.
不关你的事不要插手。
I'm a graduate of Yale University, I have a Doctor of philosophy degree.
我是耶鲁大学的毕业生，我有哲学博士学位。
Can we substitute in these things?
这几项可以用替代品吗？