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可持續(xù)性不是一種趨勢(shì)，而是我們共同的責(zé)任。

"The desert teaches patience; the river teaches change."

The challenge in computer graphics is to simulate the complexity of the real world with the simplicity of mathematical models.

寫作是奪回時(shí)間的一種方式。

Don't interfere with anything in the Constitution. That must be maintained, for it is the only safeguard of our liberties. And not to Democrats alone do I make this appeal, but to all who love these great and true principles.