单词	greisen
释义	greisen noun grei·​sen ˈgrī-zᵊn  : a crystalline rock consisting of quartz and mica that is common in Cornwall and Saxony Word History Etymology German First Known Use 1878, in the meaning defined above
随便看	national church National City national committee national convention national costume national day national debt National Democratic national economy national emergency national ensign national flag national flag blue national forest national guard national guards national guardsman national holiday national income National Insurance national interest national meridian national mission national monument national park

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