Yesterday was humanity's first chance to come face to face with one such ancestor - and a remarkable ancient relative at that.

昨天，人类第一次有机会与我们人类的一个祖先面对面——而且还是一个身份显赫的远古亲戚。

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Most of us have a one in 750 chance of developing MS, but that can jump to one in 40 if a relative has the disease.

我们大部分人有750分之一的机会患MS，但是如果有一个亲属患有这种病几率会跃变为40分之一。

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Extrapolation is always risky, but there seems every chance that the relative weight of the new pretenders will rise.

推断总是不那么准确，但是看起来很有可能的是，这些新冒险者的相对比重将会上升。

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By doing so, the two were promised relative personal privacy, and given a chance to become a part of gay-civil-rights history.

NEWYORKER: Extreme Makeover

In the quiet of morning, before busloads of visitors begin arriving from Quito, take the chance to wander and chat with the stallholders in relative calm.

BBC: Otavalo: The land of Andean artistry

Most small and a goodly number of midsize states wouldn't want to see their relative power diluted, so such an amendment would have little chance of ratification.

FORBES: Dumb, Destructive Move