单词	manganite
释义	manganite noun man·​ga·​nite ˈmaŋ-gə-ˌnīt  1 : a metallic gray to black mineral MnO(OH) that is a hydroxide and minor ore of manganese 2 : any of various unstable salts made by reaction of manganese dioxide with a base Word History First Known Use 1827, in the meaning defined at sense 1
随便看	stepping-stone stepping-stones steppingstones steprelationships steps steps (along) steps (on) steps along steps aside steps aside (from) steps aside from steps back steps down steps down (from) steps down from steps forward steps in steps into steps on steps on it steps out steps up stepsib stepsibling stepsister

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