ionic bonds短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 na.离子键；🌏离子键化合物原型ionicbond的复数 Now, remember, the formation of the ionic bonds was from group one and group two, and over here with group six and seven. 现在请记住，离子键的形成,从第一族和第二族元素，与六七主族的元素相互构成的。163 Students can go through it after the ionic bonds taught. 适合在教授离子键后给学生做总结。 hkedcity