《史记·八书·封禅书》
以往无怀氏封泰山；禅云云；虙牺封泰山，禅云云；神农封泰山，禅云云；炎帝封泰山，禅云云；彭帝封泰山，禅亭亭；颛顼封泰山，禅云云；帝俈封泰山，禅云云；尧封泰山，禅云云；舜封泰山，禅云云；禹封泰山；禅会稽；汤封泰山，禅云云，周成王封泰山，禅社首。都是受天命为帝王以后才得以封禅。 
昔无怀氏封泰山，禅云云；虙羲封泰山，禅云云；神农封泰山，禅云云；炎帝封泰山，禅云云；黄帝封泰山，禅亭亭；颛顼封泰山，禅云云；帝幹封泰山，禅云云；尧封泰山，禅云云；舜封泰山，禅云云；禹封泰山，禅会稽；汤封泰山，禅云云；周成王封泰山，禅社首：皆受命然後得封禅。 
Previously, Emperor Wuhui did not offer sacrifices at Mount Tai; the first emperor to do so was Emperor Shanyang; then Emperor Shennong, Emperor Yan, Emperor Peng, Emperor Zhuanxu, Emperor Di Yu, Emperor Yao, Emperor Shun; Emperor Yu offered sacrifices at Mount Hui; Emperor Tang offered sacrifices at Mount Tai; Emperor Zhou Cheng offered sacrifices at Mount Sheshou. All of them received the mandate of heaven, became emperors, then offered sacrifices at Mount Tai.
<s>[INST] 请提供这段文言文的现代汉语解释: 昔无怀氏封泰山，禅云云；虙羲封泰山，禅云云；神农封泰山，禅云云；炎帝封泰山，禅云云；黄帝封泰山，禅亭亭；颛顼封泰山，禅云云；帝幹封泰山，禅云云；尧封泰山，禅云云；舜封泰山，禅云云；禹封泰山，禅会稽；汤封泰山，禅云云；周成王封泰山，禅社首：皆受命然後得封禅。  [/INST] 以往无怀氏封泰山；禅云云；虙牺封泰山，禅云云；神农封泰山，禅云云；炎帝封泰山，禅云云；彭帝封泰山，禅亭亭；颛顼封泰山，禅云云；帝俈封泰山，禅云云；尧封泰山，禅云云；舜封泰山，禅云云；禹封泰山；禅会稽；汤封泰山，禅云云，周成王封泰山，禅社首。都是受天命为帝王以后才得以封禅。 </s>
请提供这段文言文的现代汉语解释: 昔无怀氏封泰山，禅云云；虙羲封泰山，禅云云；神农封泰山，禅云云；炎帝封泰山，禅云云；黄帝封泰山，禅亭亭；颛顼封泰山，禅云云；帝幹封泰山，禅云云；尧封泰山，禅云云；舜封泰山，禅云云；禹封泰山，禅会稽；汤封泰山，禅云云；周成王封泰山，禅社首：皆受命然後得封禅。
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以往无怀氏封泰山；禅云云；虙牺封泰山，禅云云；神农封泰山，禅云云；炎帝封泰山，禅云云；彭帝封泰山，禅亭亭；颛顼封泰山，禅云云；帝俈封泰山，禅云云；尧封泰山，禅云云；舜封泰山，禅云云；禹封泰山；禅会稽；汤封泰山，禅云云，周成王封泰山，禅社首。都是受天命为帝王以后才得以封禅。
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