The bulk of the world's languages use base-10, base-20 or base-5 number systems.

世界上大部分语言使用以10、20或5为基数的数字系统。

youdao

Davies: To send people might take 20 years and getting the base ready might require another 10.

戴维斯：把人送过去可能要20年，把基地建好还要10年。

youdao

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。

youdao

Using a base-20 counting system (ours is base 10) and zero, they easily calculated thousands of dates, some noting the existence of millions of years.

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