However, UV rays also damage the skin and cause cancer, and tanning beds give off three times more UV than the sun, making them both potentially dangerous and addictive.

然而，紫外线也会伤害皮肤并导致癌症，日晒床释放出比太阳多三倍的紫外线，这使它们可能很危险性并且使人上瘾。

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In this stage the dangerous life-threatening aspects of the addictive process become manifest too, not merely to the addict, merely also to family and friends.

在这个阶段的危险危及生命的成瘾成为进程的各个方面表现也不仅仅是吸毒者，也仅仅是给家人和朋友。

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But it's important to remember these neurochemicals are potent and addictive, and this can be dangerous stuff.

但务必要铭记，这些神经化学物质非常强大，很容易上瘾，也有可能成为危险的东西。

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The researchers found 337 "portal" sites offering dangerous and addictive opioids, central nervous system depressants and stimulants on the federal list of controlled substances.

FORBES: "You've Got Drugs"

The post-Sudafed meth is more refined (rising from 50% purity to 80% since 2006) and thus more addictive and dangerous.

FORBES: Losing The War On Meth And Sudafed At The Same Time

Consistent with this, there is a case for restrictions on the way in which cigarettes are advertised and sold: because cigarettes are addictive and dangerous, children are at risk of being hooked by a bad habit before they are old enough to make a reasoned calculation of the odds.

ECONOMIST: Tobacco��s Brutus