| 好看请赞,养成习惯
你有一个思想,我有一个思想,我们交换后,一个人就有两个思想
If you can NOT explain it simply, you do NOT understand it well enough
| 好看请赞,养成习惯
你有一个思想,我有一个思想,我们交换后,一个人就有两个思想
If you can NOT explain it simply, you do NOT understand it well enough
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