Staircase structure
[计] 阶梯结构
🧩 词语组成解析
🗣️ 情景例句
She's never been happier.
她从来没有像现在这样快乐过。
I would like to ask you a question.
我想问你一个问题。
The wall behind looks a bit grey and dull. What can we do to make it look less ugly?
后面那堵墙看起来有点暗。我们能不能让它漂亮点？