美国现在有一种奇怪的考古学，考古专家在封闭的垃圾填埋场上垂直钻洞，每一厘米的深入都可以看到不同年代人们的生活痕迹，还有一些很有意思的考古成果。
There is a very odd archeology in America. Scientists drill into the waste burial ground vertically to see how the life become different as every centimeter deeper.
美国现在有一种奇怪的考古学，考古专家在封闭的垃圾填埋场上垂直钻洞，每一厘米的深入都可以看到不同年代人们的生活痕迹，还有一些很有意思的考古成果。
There is a very odd archeology in America. Scientists drill into the waste burial ground vertically to see how the life become different as every centimeter deeper.
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