一个鸟类观察者用他的大望远镜观察他的一举一动，没人知道为什么。
A birdwatcher kept an eye on his activities with his large binoculars.Nobody really knows why.
但是，即使非常大的天文望远镜发现火星一个困难的目标，只是太小了。
But even very large telescopes find Mars a difficult target, it's just too small.
天线阵由六个射电望远镜组成。每一个都比一座房子要大。
The ATCA consists of six radio telescopes in total, each one larger than a house.
天线阵由六个射电望远镜组成。每一个都比一座房子要大。
The ATCA consists of six radio telescopes in total, each one larger than a house.
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