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hazardous

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They were incinerating hazardous waste without a licence.(他们没有许可就把危险废弃物烧成灰烬。)
The city's weather bureau gave air quality a rare hazardous ranking.(城市气象局给了今天的空气质量一个罕见的危险排名。)
The second-most-hazardous energy source?(而第二危险源是什么呢？)
The dense smoke also created hazardous air quality over a broad region.(火灾产生的浓烟在很大范围内严重影响了空气质量。)
As I said, it's a particularly hazardous substance and is worked with in fume hoods.(就像我说过的，这是尤其有害的物质，在通风柜中才能用。)
Sitting is hazardous. It's dangerous.(久坐是有害的，是危险的。)
The radiation such phones emit is hazardous to one's health.(手机发出的辐射对健康不利。)
Laboratory specimens may be hazardous and must be handled with extreme care.(实验室标本可能有害，必须极其谨慎地进行处理。)
My other job was less hazardous but more interesting.(我另外的那个工作不像这个工作这么冒险，但更加有趣。)
The moon is continuously being pelted by hazardous radiation.(月球不断地遭受有害辐射的袭击，多数辐射来自太阳风。)

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