Crop circle designs have developed from simple circles in the 1970s to pictorial designs in the late 1980s and binary number designers from 2001.

上世纪七十年代出现的麦田怪圈一开始只是简单的圆形图案，到了八十年代则演变成图形设计，而从2001年以后，麦田怪圈开始呈现复杂的二进制数。

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Crop circle designs have developed from simple circles in the 1970s to pictorial designs in the late 1980s and binary number designers from 2001.

上世纪七十年代出现的麦田怪圈一开始只是简单的圆形图案，到了八十年代则演变成图形设计，而从2001年以后，麦田怪圈开始呈现复杂的二进制数。

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