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The anarchic nature of the international system forces states to compete for power.

我不是說唱歌手，我是一個(gè)改變思想的人。

Books say: She did this because. Life says: She did this. Books are where things are explained to you; life is where things aren’t.

計(jì)算機(jī)并不重要，它只能給你答案。