Pfitzinger reaction
[化] 普菲青格反应
🧩 词语组成解析
🗣️ 情景例句
I understand.
我了解。
Pay somebody back in his own coin.
一报还一报。
He usually takes a short walk in the evenings and is always home by seven o'clock.
傍晚常常出去溜达一会儿，并且总是在7点钟以前回来。