1609年8月25日，一位名叫伽利略•伽利莱的意大利数学家向威尼斯的商人们演示他新造的望远镜。
On August 25th 1609 an Italian mathematician called Galileo Galilei demonstrated his newly constructed telescope to the merchants of Venice.
意大利天文学家伽利略·伽利莱如此好奇，所以他使用望远镜和显微镜以便对不论大小事物都能更仔细地观察。
The Italian astronomer Galileo was so curious that used a microscope and a telescope in order to be able to take a closer look at things great and small.
意大利天文学家伽利略·伽利莱如此好奇，所以他使用望远镜和显微镜以便对不论大小事物都能更仔细地观察。
The Italian astronomer Galileo was so curious that used a microscope and a telescope in order to be able to take a closer look at things great and small.
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