《晋书·志·第十章》
《礼记》说， 作为父亲的继承人，不为被休弃的母亲服丧，是因为不祭祀，还有，礼法规定，天子父母之丧，下葬之前，在服丧期参加祭祀天地社稷的典礼。
《礼记》曰， 为父后，出母无服也者，不祭故也 。又，礼，天子父母之丧，未葬，越绋而祭天地社稷。
The “Book of Rites” says, as an heir, one does not mourn for one’s divorced mother, because one does not make sacrifices; also, according to etiquette, when the Emperor is mourning for his parents, before they are buried, one must participate in the ritual sacrifices to heaven, earth, and the lands while in the mourning period. 
<s>[INST] 对于下面每对文言文和现代汉语段落, 请创作一个能够体现核心信息的英语翻译: 文言文: 《礼记》曰， 为父后，出母无服也者，不祭故也 。又，礼，天子父母之丧，未葬，越绋而祭天地社稷。 现代汉语: 《礼记》说， 作为父亲的继承人，不为被休弃的母亲服丧，是因为不祭祀，还有，礼法规定，天子父母之丧，下葬之前，在服丧期参加祭祀天地社稷的典礼。 [/INST] The “Book of Rites” says, as an heir, one does not mourn for one’s divorced mother, because one does not make sacrifices; also, according to etiquette, when the Emperor is mourning for his parents, before they are buried, one must participate in the ritual sacrifices to heaven, earth, and the lands while in the mourning period. </s>
对于下面每对文言文和现代汉语段落, 请创作一个能够体现核心信息的英语翻译: 文言文: 《礼记》曰， 为父后，出母无服也者，不祭故也 。又，礼，天子父母之丧，未葬，越绋而祭天地社稷。 现代汉语: 《礼记》说， 作为父亲的继承人，不为被休弃的母亲服丧，是因为不祭祀，还有，礼法规定，天子父母之丧，下葬之前，在服丧期参加祭祀天地社稷的典礼。
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The “Book of Rites” says, as an heir, one does not mourn for one’s divorced mother, because one does not make sacrifices; also, according to etiquette, when the Emperor is mourning for his parents, before they are buried, one must participate in the ritual sacrifices to heaven, earth, and the lands while in the mourning period.
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