By the fifteenth century, European countries were ready to explore new parts of the world.
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By the fifteenth century, European countries were ready to explore new parts of the world.
到十五世纪时,欧洲国家已经准备好去探索世界的其他部分了。
So, initially they came up with four lines and then eventually five and even six, and then they went back to five by the fifteenth century.
那么,他们最初提出的是四条线,但是最终却是五条线,甚至六条线,然后在十五世纪又回到了五条线。
The Portuguese Vasco da Gama's Voyage around southern Africa to India took place at the end of the fifteenth century, and by 1502 the trans-Abrabian caravan route had been cut off by political unrest.
葡萄牙人瓦斯科·达·伽马在15世纪末环绕南非航行至印度,而到1502年的时候跨阿巴拉比的商队路线因政治动乱而被切断。
So, initially they came up with four lines and then eventually five and even six, and then they went back to five by the fifteenth century.
那么,他们最初提出的是四条线,但是最终却是五条线,甚至六条线,然后在十五世纪又回到了五条线
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