汤姆知道他们的行事方式和这种行为的危险性。
由于模仿犯罪行为的危险性,有些人质疑,媒体是否应该报导所有的罪行。
Because of the risk of copycat crimes, some people question whether the media should report on some crimes at all.
所有此类群集的彻底调查对于确定病毒行为的可能改变并从而支持流感大流行危险性评估极其重要。
Thorough investigation of all such clusters is essential to determine possible changes in the behaviour of the virus and thus support assessment of the risk of an influenza pandemic.
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