hun是什麼意思？這是一個常用詞嗎？

On year （或year on year ）是用於經濟或金融狀況的一種表達方式。此表達式表示in/per given year當前年份中或compared to the same period of the previous year （ compared to the same period of the previous year ）。示例： The company saw revenue drop by 23 on year. The company saw revenue drop by 23 ％ on year. （該公司的收入比去年同月下降了23％。）示例： London's housing market has plunged by 30 on year. London's housing market has plunged by 30 ％ on year. （倫敦的住房市場比前一年暴跌了30％。）