del·e·te·ri·ous /ˌdɛləˈtɪriəs/
  (a.)有害于,有毒的
  del·e·te·ri·ous /ˌdɛləˈtɪrɪəs/ 形容詞
  有害的,有毒的
  Del·e·te·ri·ous a.  Hurtful; noxious; destructive; pernicious; as, a deleterious plant or quality; a deleterious example. -- Del*e*te*ri*ous*ly, adv. -- Del*e*te*ri*ous*ness, n.
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  deleterious
       adj : harmful to living things; "deleterious chemical additives"
             [syn: hurtful, injurious]