南北朝時(shí)期，陳國公主樂昌美麗且有才華。她與丈夫徐德言感情深厚。但當(dāng)時(shí)，隋朝正入侵陳國，陳國即將被滅亡。樂昌公主和徐德言都預(yù)感到他們的國家將被入侵者占領(lǐng)，他們也會(huì)被迫離開王宮，背井離鄉(xiāng)。戰(zhàn)亂中，他們可能失去聯(lián)系。于是，他們將一枚象征夫妻的銅鏡一劈兩半，夫妻二人各藏半邊。相約在第二年正月十五元宵節(jié)那天，將各自的半片銅鏡拿到集市去賣。期盼能重逢，并將兩面鏡子合而為一。不久他們的預(yù)感就成為了現(xiàn)實(shí)。戰(zhàn)亂中，公主與丈夫失散了，并被送到隋朝一位很有權(quán)勢(shì)的大臣楊素家中，成了他的小妾。在第二年的元宵節(jié)上，徐德言帶著他的半邊銅鏡來到集市上，渴望能遇見他的妻子。碰巧，有一名仆人正在賣半面的銅鏡。徐德言馬上認(rèn)出了這面鏡子。他向那名仆人打聽妻子的下落。當(dāng)他得知妻子的痛苦遭遇后，他不禁淚流滿面。他在妻子的那半面銅鏡上題了首詩："鏡與人俱去，鏡歸人不歸。無復(fù)嫦娥影，空留明月輝"。

　　那個(gè)仆人把題了詩的銅鏡帶回來，交給了樂昌公主。一連幾天，她都終日以淚洗面，因?yàn)樗勒煞蜻€活著而且想念她，但他們卻無法再相見了。

　　楊素終于發(fā)現(xiàn)了這件事。他也被兩人的真情所打動(dòng)，覺得自己也不可能贏得樂昌的愛。于是，他派人找來了徐德言，讓他們夫妻團(tuán)圓了。

　　"破鏡重圓"這個(gè)成語就是從這個(gè)故事來的。形容夫妻分開后，又高興的團(tuán)圓。

　　【英文版】

　　A broken mirror joined together

　　During the Southern and Northern Dynasties (420-589), there lived a beautiful, intelligent princess name Lechang in the State Chen. She and her husband Xu Deyan loved each other dearly. But before long their country was in danger of being invaded by the troops of the Sui Dynasty. Princess Lechang and Xu Deyan had a premonition that their county would be occupied by the invaders and they would have to leave the palace and go into exile. During the chaos they might lose touch with each other. They broke a bronze mirror, a symbol of the unity of husband and wife into two parts and each of them kept a half. They aGREed that each would take their half of the mirror to the fair during the Lantern Festival, which is on the 15th day of the first Lunar month, in the hope that would meet again. When they were united the two halves would join together. Soon their premonition came true. During the chaos of war, the princess lost touch with her husband was taken to a powerful minister Yang Su's house and was made his mistress.

　　At the Lantern Festival the next year, Xu Deyan took his half of the mirror to the fair. He hoped that he could meet his wife. It so happened that a servant was selling the other half of the bronze mirror. Xu Deyan recognized it immediately. He asked the servant about his wife. As he heard about her bitter experience, tears rolled down his cheeks. Xu Deyan wrote a poem on the half of the mirror kept by his wife: "You left me with your broken mirror Now the mirror is back but not you I can no longer see your reflection in the mirror Only the bright moon but not you" .

　　the servant brought back the inscribed half of the mirror to princess Lechang. For days, she could not help sobbing because she knew her husband was still alive and that he missed her but they could not meet forever.

　　the minister, Yang Su, found this out. He was also moved by their true love and realized it was impossible to get Lechang's love. So he sent for Xu Deyan and allowed the husband and wife to reunite.

　　From that story comes the idiom "A broken mirror joined together".

　　It is used to suggest the happy reunion of a separated couple.