Perkov reaction
[化] 佩尔科夫反应
🧩 词语组成解析
🗣️ 情景例句
This is a good deal: buy 1, get 1 free.
这可是个好买卖：买一送一。
When you compare the prices,you must take everything into consideration.
当你在考虑对比价格时，首先必须把一切都要考虑进去。
Such an experience befell a certain young girl the first time she was traveling alone.
一个小姑娘第一次单独出门就碰到了这种情况。