hard-heart·ed /-ˈhɑrtəd/
  (adj.)心腸硬
  Hard-heart·ed a. Unsympathetic; inexorable; cruel; pitiless. -- Hard-heart*ed*ness, n.
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  hardhearted
       adj 1: lacking in feeling or pity or warmth [syn: heartless]
              [ant: softhearted]
       2: devoid of feeling for others; "an unfeeling wretch" [syn: stonyhearted,
           unfeeling]