第一类人凭着田里的坑洞、脚印足迹和其他明显痕迹就能判断大部分怪圈都是人为的。
The first group can tell from 24 post-holes, foot tracks, and other clear signs that the majority are made by humans.
这些脚印的迹象，看来与我们现在走过沙滩时留下的足迹是一样的。
By the looks of it, the fossilized foot impressions seem identical to the ones we make when walking across the sand.
在泥泞的道路上行走是很艰难的，每个脚印都那么清晰可见，长长的一串，颇象艺术作品，但它不是作品而是人生的真实足迹。
In the muddy roads is very difficult, each of the footprints are so clearly visible, the long string, rather like a work of art, but it is not work but the real life tracks.
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