Staircase structure
[计] 阶梯结构
🧩 词语组成解析
🗣️ 情景例句
Look, simply shape up, or ship out!
看，只有表现好些才可留下来。
We assume that damage occurred while the consignment was in your care.
我们认为货物是在你方保管时受到损害的。
One moring she was working at her desk in the library when a boy came in.
一天早上，她正在图书馆里伏案工作，这时，一个男孩走进来。