impairment
名词 impairment:
the occurrence of a change for the worse
a symptom of reduced quality or strength
同义词:deterioration
the condition of being unable to perform as a consequence of physical or mental unfitness
同义词:disability, disablement, handicap
damage that results in a reduction of strength or quality
the act of making something futile and useless (as by routine)
同义词:stultification, constipation, deadening