The price of an illegal substance is determined more by the cost of distribution than of production.

非法药品价格更多的是由销售成本而不是生产成本决定的。

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Drugs again rained on the Olympics' parade as another athlete tested positive for an illegal substance.

兴奋剂再次煞了奥运会的风景，又有一名运动员的违禁药物检测结果呈阳性。

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Last week the issue was some leather cured with a known teratogenic substance, synthetic Nirret or something just as illegal that's still used in third world tanning.

上礼拜的问题是，部分皮革硫化时使用了致畸物质，某种非法但仍在第三世界用来硝制皮革的合成物质。

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Youth hostels in U.S. cities have sometimes been associated with underage drinking, illegal substance use and petty crime.

WSJ: In the U.S., Hostels With a Luxe Touch

Denise has far too much intelligence to have someone like Arbeit even suggest that she should take an illegal substance.

BBC: Cram: Leave Denise alone

Coca leaves were declared an illegal substance under the 1961 UN convention.

BBC: Bolivia achieves coca-chewing victory at United Nations