The warnings are illegible and unintelligible

这些警告文字对很大部分人来说
to a very large proportion of society.

难以辨认
And there are some twelve percent of the U.S. population,

美国约12%的人
not an insignificant number in a population of 310 million people.

对于3.1亿的人口来说这个数字并不大
So ten percent that have no capacity to read type

10%的人看不清
that is less than ten point in font.

比十号字更小的字
That means that those warning labels could never be

也就是说那些警告标签
effective for that population.

对这部分人是不起作用的
If you add on to that percentage,

如果你在这个数目上再算上
the group that is illiterate,

不识字的人
the group that does not have enough education

还有那些没有接受足够的教育
in order to understand what the risk is

因此不了解这类产品的危害