原声例句
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It axiomatically must be 6 protons, and it has 7 neutrons.
它自然也是6个质子，有7个中子。
应用推荐
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- 来自原声例句
It axiomatically must be 6 protons, and it has 7 neutrons.
它自然也是6个质子，有7个中子。
应用推荐