1.  harmful
2.  detrimental
3.  baleful
4.  pernicious
5.  noxious

• 1. 有害的: detrimental | deleterious | pernicious
• 2. 极有害的: deadly | crippling
• 3. 对环境有害的: ungreen | environmentally harmful | environmentally hazardous

更多释义

• 1.水不能有效阻挡太阳中更有害的射线。
  Water is not an effective shield against the sun's more harmful rays.
  dict.yoduao.com
• 2.眼泪有助于保护眼睛去除可能有害的异物。
  Tears help to protect the eye from potentially harmful foreign bodies.
  dict.yoduao.com
• 3.然而，戴错眼镜可能是有害的。
  Wearing the wrong glasses, however, can prove harmful.
  dict.yoduao.com

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