"You know,forecasting's become a very hazardous business so I don't want to commit myself too much.

VOA: standard.2009.12.20

As I said, it's a particularly hazardous substance, this is worked with in fume hoods.

就像我说过的，这是特别有害的物质，在通风柜中才能用。

麻省理工公开课 - 化学原理课程节选

some modern drugs, chemotherapy drugs, as well as certain antibiotics, are hazardous to our hearing.

现今的某些药物，化疗制剂以及抗生素，也危害着我们的听力，以上所说的实际是。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

You'd want to make sure that you separated the virus from all the other parts of cow skin so that your ultimate preparation was enriched in the virus and didn't contain quantities of other things that would be hazardous.

你要保证,你从所有的牛皮组织上分离出病毒,这样最终的制剂产品才会富集病毒,并且不会携带其它物质,这些物质可能带来危险

耶鲁公开课 - 生物医学工程探索课程节选