Human may define a geological period in the way dinosaurs — and their vanishing act — helped mark the Jurassic.

恐龙以及恐龙的消失是侏罗纪的标志，人类或许也会像它们那样定义一个地质时期。

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The researchers found a causal linkage with a decline in average human height by nearly an inch during this period, and the century was rife with disease and conflict.

研究人员发现，这是造成这一时期人类平均高度下降将近一英寸的原因，而在这一百年中，瘟疫和战乱频繁发生。

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But their honeymoon period is short lived before they discover Bella is pregnant with a half human, half vampire baby.

然而他们的蜜月期十分短暂，爱德华发现贝拉怀孕，怀上一个“半人半吸血鬼”的婴儿后美丽的爱情故事又开始陷入一片灰暗。

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No human being is referred to as wanax in the period of historical Greece.

所以在古希腊,没有人可以称王

耶鲁公开课 - 古希腊历史简介课程节选

But over a lifetime, I think I would think almost a complete majority here would agree that they would rather be a human with higher pleasure than be that rat with intense pleasure for a momentary period of time.

但是就一生而言,我觉得，在场绝大部分人都会同意,他们更愿意做拥有更高级快乐的人,而不是只图一时快乐，做那只享受一时快感的鼠。

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Dr Nichols suggests that this diversity is a result of a relatively long period of human settlement there.

ECONOMIST: The New World, it seems, really is new

This would prove to be a pivotal period for human-powered aircraft, and the Gossamer designs would be the new reference point for future projects.

ENGADGET: The Highs and Lows of Human-Powered Flight Alt

The team identified a clear and significant association between investments in human capital in each period and a country's subsequent growth and labour productivity.

ECONOMIST: A breakthrough in measuring the knowledge economy