- facilis descensus Averni
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[facilis descensus Averni 词源字典] - Latin, literally "the descent of Avernus (is) easy" ["Aeneid," VI.126], in reference to Avernus, a deep lake near Puteoli and a reputed entrance to the underworld; hence, "it is easy to slip into moral ruin."[facilis descensus Averni etymology, facilis descensus Averni origin, 英语词源]