Perkov reaction
[化] 佩尔科夫反应
🧩 词语组成解析
🗣️ 情景例句
But it is not polite to ask older people their age.
但问老人的年龄是不礼貌的。
Do you work near the railway station?
你在火车站附近工作吗？
I'm afraid I'm still not very good at it, though.
不过，恐怕我的汉语还是不够好。