ar·dor /ˈɑrdɚ/
 熱心,熱情
 Ar·dor n.  [Spelt also ardour.]
 1. Heat, in a literal sense; as, the ardor of the sun's rays.
 2. Warmth or heat of passion or affection; eagerness; zeal; as, he pursues study with ardor; the fought with ardor; martial ardor.
 3. pl. Bright and effulgent spirits; seraphim. [Thus used by Milton.]
 Syn: -- Fervor; warmth; eagerness. See Fervor.
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 ardor
      n 1: a feeling of strong eagerness (usually in favor of a person
           or cause); "they were imbued with a revolutionary
           ardor"; "he felt a kind of religious zeal" [syn: ardour,
            elan, zeal]
      2: intense feeling of love [syn: ardour]
      3: feelings of great warmth and intensity; "he spoke with great
         ardor" [syn: ardour, fervor, fervour, fervency, fire,
          fervidness]