Oneupmanship
单利现象
🗣️ 情景例句
Don't mention it. What would you like to drink?
别客气，想喝点什么？
I'm sorry,but both of them are busy right now.
很抱歉他们现在很忙。
Last week, a group of Class 3 students decided to go to the museum in the centre of the town.
上星期，3班的一群学生决定去参观位于城镇中心的博物馆。