For example, they do not make up for gross social inequality, and thus do not tell how able an underprivileged youngster might have been had he grown up under more favorable circumstances.

• 译文例如,它们并不弥补明显的社会不公；因此,它们说明不了一个物质条件差的年轻人,如果在较好的环境下成长,会有多大的才干。