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Recently archeologists have discovered clues
问题详情
Recently, archeologists have discovered clues at digs in both North and South America that lead them to believe that humans first migrated to the New World not 11,500 years ago, but much earlier – 20,000 or even 50,000 years ago.(翻译)
参考答案
参考答案：最近，考古学家在北美洲和南美洲发现了挖掘的线索，使他们相信，人类最早迁移到新大陆的时间不是11500年前，而是更早的–20000年，甚至是50000年前。
