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I don't want to be a great man. I want to be a good man.

I don't think you can make a good movie without a good script.

The security dilemma is a fundamental feature of international politics, as states' efforts to increase their own security often decrease the security of others.

最可持續(xù)的產(chǎn)品是使用壽命最長的產(chǎn)品。