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A small circle of stones were found stacked, apparently to hold branches in position.
一小圈堆砌起来的石头，很显然是为了稳固支架。
youdao
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The center of circle is the position of the centre hole for positioning.
该圆周的圆心即定位的中心孔位置。
youdao
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The center of circle is the position of the centre hole for positioning.
该圆周的圆心即定位的中心孔位置。
youdao