ˋㄏㄨㄛˋhuòㄋㄢˊnánㄊㄧㄢˊtián

  1. 形容貪慾如同深谷一樣永遠滿足人心貪念不止要知慾壑難填痛苦深淵。」

bottomless pit of desire (idiom)​; insatiable greed, carnal cravings are never satisfied and are a main obstruction on the path to enlightenment
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