双语例句原声例句
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通常情况下，铁原子丧失2 - 3个电子。
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他将利用铁原子的一种非通常化学形态来净化水源，而非污染水源。
He intends to use a chemically unusual form of iron to clean water up, not make it dirty.
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像所有的金属一样，铁原子与其他元素反应，释放电子形成带正电的离子。
Like all metals, these react with other elements by giving up electrons to form positively charged ions.
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It has two irons that are involved in doing the chemistry, so it includes transition metals.
反应中有两个铁原子参与,因此她还要了解过渡金属。
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