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内容简介：
以秦小龙为首的一群中国少年，发现了一个踩在人类脚印，为了查明这个神秘脚印的来历，他们借助一部由德国科学家发明的能够穿越时空的时间机器回到了几亿年前的恐龙时代。在远古生物靠前繁盛的时期、在古文明盛极一时
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