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理论与观测之间的相互作用推动了天体物理学的发展。
Architecture is not about form, it's about many other things.
No arts; no letters; no society; and which is worst of all, continual fear, and danger of violent death; and the life of man, solitary, poor, nasty, brutish, and short.
Agricultural research should address national needs and solve practical problems, it cannot be separated from production practice.