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

译文：人生变化不定，富贵难以预料。

从种子到餐盘的蔬菜旅程应该尊重接触过它的每一双手。

我已经尽全力了，但我不可能是个完美的人。我无法作到既英俊，又能唱绕舌歌，又能得分，还能罚球罚得准。