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
I have good eyesight.
我的视力挺好。
He is distinguished as an economist.
他是一名著名的经济学家。
The secret was spread among the crowd.
秘密在人群当中传播开来。