But with the polarization between the difference is that earth human social life of the largest and most basic demand of interpersonal inequality.
而有了贫富差异差别就是地球人类社会生存中的最大的也是最基本需求的人与人之间的不平等。
In the 21st century, learning will gradually become a basic human demand, and an important part of our life.
21世纪学习将逐步成为人的基本需求，成为人们生活的一个重要组成部分。
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