单词	covalence
释义	covalence noun co·​va·​lence ˌkō-ˈvā-lən(t)s  ˈkō-ˌvā- : valence characterized by the sharing of electrons Word History First Known Use 1919, in the meaning defined above Medical Definition covalence noun co·​va·​lence (ˈ)kō-ˈvā-lən(t)s  : valence characterized by the sharing of electrons
随便看	sections sections off sectism sectist sector sector disk sector gate sector gear sector of a sphere sector wheel sectoral sectored sectored disk sectorial sectoring sectors sectrales sectrals sects sectuary secty secular secular arm secular canoness secular games

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