harmful是什么意思

harmfuladj.(尤指对健康或环境)有害的，导致损害的.

The drug is to be reclassified after trials showed it to be more harmful than previously thought.

试验显示这种药比先前想象的危害更大，要重新归类。

Such laws could protect the consumer from harmful or dangerous remedies

这样的法规可以保护消费者免受有害或者危险药品的`威胁。

Mr Campbell said such programmes were by their very nature harmful

坎贝尔先生说此类节目本质上就是有害的。