The elders can say "I wish you a hundred years of harmony and unity forever", expressing the hope that the new couple can stay together for a long time and experience the ups and downs of life together. In addition, the elders can also say "May you grow old together and be happy", which means that the newlyweds hope to grow old together and enjoy their old age.

The elders can say "I wish you a hundred years of harmony and unity forever", expressing the hope that the new couple can stay together for a long time and experience the ups and downs of life together. In addition, the elders can also say "May you grow old together and be happy", which means that the newlyweds hope to grow old together and enjoy their old age.

The above is for reference only, please don't be blindly superstitious.