de·base /dɪˈbes, di-/
  (vt.)貶低,降低
  De·base v. t. [imp. & p. p. Debased p. pr. & vb. n. Debasing.]  To reduce from a higher to a lower state or grade of worth, dignity, purity, station, etc.; to degrade; to lower; to deteriorate; to abase; as, to debase the character by crime; to debase the mind by frivolity; to debase style by vulgar words.
     The coin which was adulterated and debased.   --Hale.
     It is a kind of taking God's name in vain to debase religion with such frivolous disputes.   --Hooker.
     And to debase the sons, exalts the sires.   --Pope.
  Syn: -- To abase; degrade. See Abase.
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  debase
       v 1: corrupt morally or by intemperance or sensuality; "debauch
            the young people with wine and women"; "Socrates was
            accused of corrupting young men"; "Do school counselors
            subvert young children?"; "corrupt the morals" [syn: corrupt,
             pervert, subvert, demoralize, demoralise, debauch,
             profane, vitiate, deprave, misdirect]
       2: lower in value by increasing the base-metal content [syn: alloy]
       3: corrupt, debase, or make impure by adding a foreign or
          inferior substance; often by replacing valuable
          ingredients with inferior ones; "adulterate liquor" [syn:
          adulterate, stretch, dilute]