This heirloom has been handed for several generations.
此项产业已经数代相传了.
🌱 联想助记
【记】heir-继承人,loom-织布机:继承人得到的传家宝是织布机
📖 牛津释义
heirloom
n
(usu valuable) object that has been handed down in a family for several generations (通常为贵重的)祖传遗物, 传家宝
That clock is a family heirloom. 那个座钟是祖传下来的.
Twenty or thirty pages of information handed to any of the major world powers around the year 1925 would have been sufficient to change the course of world history.