The circles can take the shape of dna structures , scorpions , snowflakes , helices , webs , knots and complex geometric patterns .

怪圈的形状采用dna的结构，蝎子，雪花，螺旋，网结和复杂的几何图形。

Temperature oscillations or chemical changes should cause complete double helices to come apart , each then rebuilding the whole as fresh nucleotides link on .

温度和化学变化会使双股链分解，然后各核苷酸再重新形成整体继续连接。

But just as the demise of the peculiarly english rural tradition was predicted , the circles - which can take the shape of dna structures , scorpions , snowflakes , helices , webs , knots and complex geometric patterns - have abruptly returned in force .

但正如去预言特有英国农村传统的现象最终会结束一样，麦田怪圈又突然大规模地出现在人们眼前，形成如dna结构、蝎子、雪花、螺旋、蜘蛛网、蝴蝶结和复杂的几何图案等形状。