单词	monocrystal
释义	monocrystal noun mono·​crys·​tal ˈmä-nə-ˌkri-stᵊl  : a single crystal monocrystal adjective monocrystalline ˌmä-nə-ˈkri-stə-lən   also  -ˌlīn -ˌlēn adjective Word History First Known Use 1926, in the meaning defined above
随便看	stepping stone stepping stones stepping up stepping-off place 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

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