Polystep reaction
[化] 多步反应
🧩 词语组成解析
🗣️ 情景例句
I would like a haircut, please.
麻烦你，我想理发。
Yes, I'm applying to work at the library.
是的，我在申请图书馆管理员的工作。
They were in fashion last year and the year before last.But they're not in fashion this year.
这鞋在去年和前年时兴，而今年已不流行了。