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I don't think about age. I think about life and living.
科学家不对自然法则负责,但他的工作是找出它们如何运作。
"Kindness is a language that everyone understands."
Melody is the essence of music.
系外行星的多样性令人惊叹,从气态巨行星到岩石世界,其中一些可能孕育着生命。