The vigesimal system (counting in base 20) is thought to originate from humans' fingers and toes.
据猜想,二十进制(以20为基数进行计算)源于人类的手指和脚趾。
The Mayan's had vigesimal numerical system, which used base 20.
玛雅人拥有以二十为基础的数字系统。
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