每一位物理学家都确切地知道什么是第一和第二定律，但是根据我的经验没有两个物理学家的认识是相同的。
Every physicist knows exactly what the first and second laws mean, but it is my experience that no two physicists agree on them.
每一位物理学家都确切地知道什么是第一和第二定律，但是根据我的经验没有两个物理学家的认识是相同的。
Every physicist knows exactly what the first and second laws mean, but it is my experience that no two physicists agree on them.
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