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As we go down a column, what happens is that the ionization energy decreases.
当我们沿着列向下走的时候，会发现电离能是在降低的。
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- 来自原声例句
As we go down a column, what happens is that the ionization energy decreases.
当我们沿着列向下走的时候，会发现电离能是在降低的。
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