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Thinkaboutthedifferentwaysthatpeopleusethewind.Youcanus...
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  • 问题详情:Thinkaboutthedifferentwaysthatpeopleusethewind.Youcanuseittoflyakiteortosailaboat.Windisoneofourcleanestandrichestpowersources,aswellasoneoftheoldest.Evidenceshowsthatwindmills(风车)begantobeusedinancientIranbackinthe7thcenturyBC.Theywerefirs...
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