impairment
  損害;損傷
  im·pair·ment /-ˈpæ(ə)rmənt/ 名詞
  損傷,減損,削弱,減少,缺陷,功能缺損,殘缺,損害,減退
  impairment
  減損
  impairment
  減損
  Im·pair·ment n.  The state, act, or process of being impaired; injury. “The impairment of my health.”
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  impairment
       n 1: the occurrence of a change for the worse [syn: damage, harm]
       2: a symptom of reduced quality or strength [syn: deterioration]
       3: the condition of being unable to perform as a consequence of
          physical or mental unfitness; "reading disability";
          "hearing impairment" [syn: disability, disablement, handicap]
       4: damage that results in a reduction of strength or quality
       5: the act of making something futile and useless (as by
          routine) [syn: stultification, constipation, deadening]