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
Your birthday is tomorrow, isn't it?
你明天生日 ，是吗？
I don't think so. I know several convenient hotels. Let me make some calls.
我认为没有，我知道有几家便利旅馆，让我打几个电话。
This box is big.
这是个大盒子。