noun 下载 🔗分享 同素异形体, 同素异形物 Any form of an element that has a distinctly different molecular structure to another form of the same element. Examples : "Carbon exists as several allotropes, including diamond and graphite, which have very different properties despite both being made of only carbon atoms. " 碳以多种同素异形体存在,例如金刚石和石墨,尽管它们都仅由碳原子构成,却具有截然不同的性质。 element chemistry substance material science 与AI对话词汇游戏阅读练习