SEEING IS BELIEVING: When we peer into space with a telescope, we are actually looking back in time.

眼见为实：当我们利用望远镜凝视着宇宙，事实上我们正在回望过去的时间。

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It is a normal element cycled around in the earth and my science, which is looking back in time, is saying we have had a planet that has been a green, warm wet planet 80 per cent of the time.

这是地球上一个正常的元素循环，我的科学沿时间回溯，表明我们的地球80%的时间曾是一个绿色、温暖、潮湿的行星。

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We talked about starlight, how it had begun its journey thousands of years ago and we were looking back in time.

我们谈论星光，说起它如何于数千年前就踏上旅程，而我们其实是在回望过去。

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Looking at the Grand Canyon is like looking back in time.

VOA: special.2009.10.07

So that line was certainly written not by Moses; it was written by someone at a much later time who's looking back and referring to the time when the Canaanites were in the land.

所以这句话，绝对不是摩西所写;,是后人，以后世的角度描写,那时候Canaanites居住在那片土地上。

耶鲁公开课 - 旧约导论课程节选

Because light moves at finite speed, looking farther into the Universe means looking back in time.

BBC: Observatory detects record burst

Venturing through its dense and lively rain forests feels like looking back in time.

BBC: Malaysian Borneo on a single circuit

"The stalactites and stalagmites from these caves are a way of looking back in time to see how warm periods similar to our modern climate affect how far permafrost extends across Siberia, " said Dr Anton Vaks from the University of Oxford.

BBC: Siberian cave