学生们在高中时代(甚至更早一些)就已经接触到某种形式的编程训练，我们年轻时所经历的那种激动的感觉在今天已经难觅踪影了。

Students in high schools and lower grades have already been exposed to some form of programming and the excitement we experienced when we were young is hard to find these days.

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第一个星系集群形成的时代现在已经不能准确知道了，但是据估计至少是在9亿年前形成的，或许更早一些，在120亿年前就已经形成了。

The era when the first clusters formed is not precisely known, but is estimated to be at least 9 billion years ago and possibly as far back as 12 billion years ago.

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这个古老的习俗在德比郡各处都十分受欢迎，据说起源于凯尔特人时代，甚至更早。

This ancient custom is popular all over Derbyshire and is thought to date back to the Celts or even earlier.

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