In principle, one can trace that history back in cosmic time by observing a so-called standard candle, a class of astronomical object whose intrinsic luminosity is uniform.

原理上，我们可以通过观测所谓的标准烛光(一种天体，它的绝对光度是相同的)来追溯宇宙内的历史。

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One might capture such information by observing the data generated for valid users of the system as it whizzes by on a wire.

当为系统的正当用户而生成的数据在导线中传输时，可以通过观测来获取这类信息。

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Q. is it only by observing that one can understand that the cause of an expression of negative emotion is different from the cause of the emotion?

是否只有通过观察一个人才能了解表达负面情绪的原因和引起负面情绪的原因是不同的？

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But Israel is the one to affirm its holiness by observing the rules that make it different, that mark it off as holy.

然而以色列通过观察那些使之与众不同的,使之神圣的规则，肯定了它的神圣性。

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Mr Strauss-Kahn, who had pushed hardest for its creation, tartly dismissed this by observing that in a marriage one did not invite strangers into the bedroom.

ECONOMIST: Gordon Brown, the lonely chancellor