When my life didn't offer usable material I started reaching for the low hanging fruit: desert-island gags and gorillas.

当我无法在生活中取材的时候，我开始由一些简单的事物着手：荒岛、大猩猩等。

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Three weeks after delivering the jawbone to the Adelaide lab, Blenkin got the news he'd been hoping for - Austin had extracted usable genetic material.

布兰金把颌骨送到阿得雷德实验室以后三周，收到了他一直期盼着的消息——奥斯丁已经提取到有用的基因物质。

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Summers writes the bacteria may have applications for decaffeinating production waste, making it usable as livestock feed or even raw material for biofuels.

Summers还写道，这种细菌也许还能运用于除去上述产品残渣中的咖啡因，以使这些残渣作为家畜饲料甚至是生物燃料的原材料。

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"In this day and age, no one should be allowed to possess nuclear-weapons-usable material without providing an armed defense of that material, " said Edwin Lyman, a nuclear physicist with the Union of Concerned Scientists.

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They set out a four-year timetable to gather up and secure bomb-usable fissile material.

ECONOMIST: Disarmament and counter-proliferation

As the chart shows, the amount of potentially weapons-usable nuclear material either highly enriched uranium or separated plutonium under inspection has increased far faster than the funds available for safeguarding it.

ECONOMIST: Troubling flaws in the world's nuclear safeguards