One theory is that bipedality evolved in conjunction with the nuclear family: monogamous parents cooperating to care for their offspring.

有一种理论认为，两足动物的进化与核心家庭有关：一夫一妻制的父母合作照顾他们的后代。

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That theory, he says, might be testable in the Large Hadron Collider (LHC) at CERN, the European Organization for Nuclear Research.

这个理论也许能在欧洲原子能研究机构的大型强子对撞机上得到验证。

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It's Huxley that said woe to the slaying of a beautiful theory by an ugly fact, nuclear collapse.

赫胥黎说过,一个美丽的理论,被丑陋的事实所抹杀，核坍塌，真是科学的悲剧。

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Kennan, whose writings gave birth to the theory of nuclear deterrence, argued passionately but futilely against the development of the hydrogen bomb.

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Before his writings on the carbon cycle, Mr Bethe produced several papers that endeavoured to pull together the whole theory of nuclear physics.

ECONOMIST: Hans Bethe, nuclear physicist, died on March 6th, aged 98

Nuclear fusion power plants, in theory, can provide clean, safe, cheap and ubiquitous power.

FORBES: Hollywood, Silicon Valley and Russia Join Forces on Nuclear Fusion