这个数字反映原来人类的皮肤也像内脏一样五花八门，任何一处皮肤都住着500到1000个细菌种群。

The number suggests that our skin is as variegated as our guts, which house anywhere from 500 to 1000 bacterial species.

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做生意就是和各种各样的数字打交道，要不然，为什么学校一定要给你开一门统计学呢？

Business is about Numbers, after all, and there's a reason you had to learn statistics in school.

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从排名最靠前的数字开始，它会告诉你有多少孩子以C或C以上的成绩通过了五门（或五门以上）的包括英语和数学在内的GCSE考试。

Start with the headline league table figure, the one that tells you how many children get five or more GCSEs with a grade C or better, including English and maths.

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