las·civ·i·ous /ləˈsɪviəs/
  (a.)好色的
  Las·civ·i·ous a.
  1. Wanton; lewd; lustful; as, lascivious men; lascivious desires.
  2. Tending to produce voluptuous or lewd emotions.
  He capers nimbly in a lady's chamber
  To the lascivious pleasing of a lute.   --Shak.
  -- Las*civ*i*ous*ly, adv. -- Las*civ*i*ous*ness, n.
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  lascivious
       adj : driven by lust; preoccupied with or exhibiting lustful
             desires; "libidinous orgies" [syn: lewd, libidinous,
              lustful]