Stepped construction
[化] 阶梯式结构
🧩 词语组成解析
v. 踏；行走（step的过去式和过去分词）
🗣️ 情景例句
All right. We'll make close study about it and give you reply as soon as possible.
很好。对这个问题我们将仔细研究一下，尽快给你们答复。
I have come to make sure that your stay in Beijing is a pleasant one.
我特地为你们安排使你们在北京的逗留愉快。
In five hours' time!
5个小时以后！