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解析:圣人致知的功夫在于至诚不息。
Sustainable forestry is not just about cutting trees; it's about ensuring the future has forests to cherish.
I’m not afraid of dying, I’m afraid of not trying.
用程序证明四色定理不会改变数学——它只是证明了这个挑战了一个世纪的定理是一个有限的问题。