ion
US /ˈaɪ.ɑːn/
UK /ˈaɪ.ɒn/
名词
离子
an atom or molecule with an electric charge due to the loss or gain of one or more electrons
示例:
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Sodium chloride dissolves in water to form sodium ions and chloride ions.
氯化钠溶于水形成钠离子和氯离子。
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Positive ions are called cations, and negative ions are called anions.
正离子称为阳离子，负离子称为阴离子。