Stepped aging
[化] 阶段时效
🧩 词语组成解析
v. 踏；行走（step的过去式和过去分词）
aging
['eidʒiŋ]
n. 老化;老龄化;（酒等的）陈化;熟化;
v. 使变老;（使）长大( age的现在分词 );使显老;使变老;使苍老;
🗣️ 情景例句
And in a short campaign
而且这一场短暂的竞选
Did you phone him yourself?
你自己亲自打电话给他吗？
On the third lap, the Class 3 and Class 1 runners both ran very fast.
在跑第三圈时，3班和1班的运动员都跑得非常快。