Ub
[计] 上限
🗣️ 情景例句
She condemned her son for his behavior.
她责备她儿子的行为。
It's nice to be sitting here with you.
在这里陪你坐着是非常愉快的。[动词不定式的进行时]
Why did you run away from me?
你为什么从我身边跑开？