名词
中文翻译：Unknown
同义词：
['toxic chemical', 'chemical pollutant']
例句：
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1. The factory discharged a large amount of chemical toxicants into the river.
工厂向河流排放了大量的化学物质。
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2. The chemical toxicant in the water could be harmful to humans.
水中的化学物质对人类可能是有害的。
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3. The chemical toxicant was found to have mutagenic effects on the bacteria.
这种化学物质被发现对细菌有致突变效应。