很多研究人员还发现，体育运动有助于减少毒品使用、增进健康、提高学习成绩、增强自信等等。
Decreased drug use, improved health, better grades, increased confidence and other benefits also have been found by various researchers.
挖掘网络，能追踪那些与新趋势及新行为相关的信息，这些信息包罗万象，从毒品使用与种族关系紧张到电影喜好与新产品。
The web could be mined to track information about emerging trends and behaviours, covering everything from drug use or racial tension to interest in films or new products.
社会大体上对消遣性毒品的使用视而不见。
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