圈; 环形物; 环; 戒指#铃声, 钟声; 语气; 按铃, 敲钟; 口气 { ring } 圈, 环; 环路, 环线; 环状物; 弯曲处 { loop } 团体; 团; 组; (计算机用语) 在窗口工作状态包含几个应用图示的视窗 { group } ..
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另一种猜测认为这些环状物与资源争夺相关。
Another hypothesis ascribes the circles to competition for resources.
硬币出现之前，贝壳、环状物、竹签、木块和布片都当钱来使用。
Before COINS appeared, seashells, rings, bamboo sticks, wood and pieces of cloth were all used for money.
如果没有封闭它，那么就可以尝试在这里画某类环状物。
Well, if you don't quite close it all the way around, so I can try to, indeed, draw some sort of doughnut here.
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