Electronic wastes also contain many poisonous metals.
2015年高考英語江蘇卷 閱讀理解 閱讀B 原文
Even when the machines are recycled and the harmful metals removed, the recycling process often is carried out in poor countries, in practically uncontrolled ways which allow many poisonous substances to escape into the environment.
2015年高考英語江蘇卷 閱讀理解 閱讀B 原文
If she had been aware that the mushroom were poisonous, she would not have picked them for dinner.
2015年高考英語湖北卷 句子填空 原文
Lead poisonous has proved more difficult to deal with.