And even if one could enforce a ban on cloning, or at least insure that clones would not be a mistreated caste, the social costs of prohibition could still be high.

而即使能对克隆技术实施禁止，或至少确保克隆人不是遭受歧视的等级，禁止的社会代价仍将是巨大的。

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Alcohol, to some people, is the wo 'rst villain. an'd yet, when the nation tried to ban alcohol during prohibition, the experiment proved a failure.

对某些人来说，酒是个最坏的东西。但当国家试图禁酒时，结果总是归于失败。

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They also performed pulmonary tests and blood tests before the ban and at one month and two months after the prohibition went into effect.

他们还将禁烟实施前和实施后一个月和两个月的肺功能和血液检查的结果相对照。

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Perhaps we could model such a ban on the successful prohibition of cocaine.

ECONOMIST: The OECD

Two years later they opened the state's first brewpub after persuading legislators to drop a Prohibition-era ban.

FORBES: Magazine Article

He has tried to soften his tone, but he has not been helped by the Republican nominee for lieutenant-governor, Jay Katzen, who wants a straight ban on abortions, a prohibition of same-sex marriage and a roll-back of Virginia's restrictions on hand-gun purchases (which Mr Earley supported).

ECONOMIST: The Virginia governor's race