因为相关知识还不完备，很多自然系统也不是必然地处于稳定状态。
Knowledge is incomplete, and natural systems are not necessarily stable.
完备的物理知识同化学中良好的基础训练一样重要。
A sound knowledge of physics is fully as important as good grounding in chemistry.
完备的物理知识同化学中良好的基础训练一样重要。
A sound knowledge of physics is fully as important as good grounding in chemistry.
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