基本解释adj.第二十的；二十分之一的；以20为基数的同根派生 英汉例句双语例句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。英英字典柯林斯英英字典 relating to or based on the number 20 20 20