Explanation: ① metaphor hierarchy is different. ② metaphor of a variety of situations.
Compared to paying differently
Compared to paying different. "Book of Rites": "day of high ground, of all particulars, and the ritual system line carry on." Standard Interpretation Shu: the "days of high ground is different enemies have different ethical inferiority or superiority."
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Comparison of various situations
Metaphor of a variety of situations. "Jin Ping Mei," the 40th back: "That Ximen people to eat a night of wine, tossed away the first, that Gu-day high ground, snoring sleep like thunder." "First moment of surprises," Juan Shisi: "Young of the grass slope of a cross, let stand up son, I do not know one days of high ground, snoring like thunder. "
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No. 4
【名称】天高地下 【拼音】tiān gāo dì xià
【解释】①比喻尊卑有别。②比喻各种情势。
【出处】《礼记·乐记》：“天高地下，万物散殊，而礼制行矣。”孔颖达疏：“以天高地下不同，故人伦尊卑有异。”《金瓶梅词话》第四十回：“那西门庆吃了一夜酒的人，倒去头，那顾天高地下，鼾睡如雷。”
【事例】杨化在草坡上一交，放翻身子，不知一个～， 鼾声如雷。 ★明·凌蒙初《初刻拍案惊奇》卷十四