B2 very harmful and able to cause illness or death有毒的,有害的
B2 A poisonous animal or insect uses poison in order to defend itself.(动物或昆虫)有毒的
very unpleasant and unkind令人不快的;恶意的
More examples
Carbon monoxide is a colourless, odourless, poisonous gas.
These normally harmless substances combine to form a highly poisonous gas.
Thousands of fish were killed as a result of a discharge of poisonous chemicals from a nearby factory.
Fungus can be poisonous.
The chemicals can be poisonous if ingested.
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