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Abstract: Thousands of years ago， our ancestors used darts for hunting. With the development of the society， arrows took place ...

Country: Britain Duration: 60 mins Viewers: 242

Abstract: Let us take you back to a time before people lived in cities. When small groups roamed the country， fighting each oth...

Country: Australia Duration: 29 mins Viewers: 240

Abstract: They have fascinated mankind for centuries. 2，300 years ago， the Greeks decided to list the seven works of our w...

Country: France Duration: 25 mins Viewers: 0

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