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The best stories are those that resonate with both children and adults.
Don’t let anyone define your worth.
Le secret des grandes fortunes sans cause apparente est un crime oublié.
A tannery's waste stream tells the story of its ethics more clearly than any mission statement.
物体的加速度与所受的合外力成正比,与物体的质量成反比。加速度的方向与合力的方向相同。