毒品问题是这个国家的不能承受之重，一项对阿富汗警方的调查表明大概这个国家17%的警察最近都吸过毒。

The drug problem in this poor country is so large that a drug test in the Afghanistan police force showed that 17% of the countries police officers had lately used drugs.

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压倒她的不是重，而是不能承受的生命之轻。

She is not heavy, but can not bear the light of life.

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这种网络不能承受之重，实则反衬着现实中的制度之轻。

This kind of Internet environment cannot bear this weight and actually it serves more as a contrast to the reality of the lightness of the system.

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