pernicious
pernicious[pəˈnɪʃəs]adjective- having a harmful effect, especially in a gradual or subtle way
有害的,恶劣的,恶性的
the pernicious influences of the mass media.
大众传媒的有害影响。
派生perniciouslyadverbperniciousnessnoun语源- late Middle English: from Latin perniciosus 'destructive', from pernicies 'ruin', based on nex, nec- 'death'
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