柯林斯词典ion /ˈaɪən, ˈaɪɒn/ (ions) 1. N-COUNT Ions are electrically charged atoms. 離子[技術] [usu pl] 返回 ion剑桥词典an atom or small group of atoms that has an electrical charge because it has added or lost one or more electrons 離子 也見the ionosphere 返回 ion