单词：severe contamination
severe contamination的用法和样例：
例句
- There is a danger of serious contamination from radioactive waste.放射性废弃物有严重污染的危险。
- Article 21 If an enterprise or institution causes severe environmental pollution with solid waste,it shall be required to bring it under control within a time limit.第二十一条对造成固体废物严重污染环境的企业事业单位，限期治理。
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