hazardous substance

• 有害物质

hazardous substance的用法和样例：

例句

1. Those who illegally dump hazardous substances should be held accountable.
   非法倾倒有害物质者应该承担责任。
2. Superfund, the hazardous material cleanup group, does not seem to work well.
   有害物质清除组织超级基金似乎没有起到什么作用。