The brooch is a family heirloom which came down to her from her grandmother.这枚胸针是她家的传家宝，是从她祖母那一代传到她手中的。The heirloom was handed down from my grandparents.这个传家宝是从我的祖父母那里传下来的。The painting is a family heirloom that has been passed down through the generations.这幅画作世代相传，是传家宝。