Ub
[计] 上限
🗣️ 情景例句
She's worked two jobs for years.
几年来他一直同时做两个工作。
Thank you for inviting us; we had a wonderful time.
谢谢您的邀请，使我们过得很快乐。
It kept repeating the steps over and over.
蜜蜂一而再，再而三地重复它的"舞步。