长期以来，丝绸一直是中国的传世之宝，它凝聚的文化科技内涵更是博大精深。
As a great treasure created by ancient Chinese people , silk contains rich cultural and technological contents .
约瑟把杯子带到了不列颠，当做家中的传世之宝。
Joseph was wupposed to have taken it to Britain , where the cup was passed down from generation to generation in his family .
传世之宝