The Nordic countries are distinctive in one further way: the sons born at the bottom (into the poorest fifth) earn roughly the same as those born a rung above them (the second-poorest fifth).
北欧国家本质上更加不同的是：出生于底层的儿子们（最穷的五分之一）同那些生于比他们高一级的（次底层的）挣得差不多一样多。
The Nordic countries are distinctive in one further way: the sons born at the bottom (into the poorest fifth) earn roughly the same as those born a rung above them (the second-poorest fifth).
北欧国家本质上更加不同的是：出生于底层的儿子们（最穷的五分之一）同那些生于比他们高一级的（次底层的）挣得差不多一样多。
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