Vanity and pride are different things, though the words are often used synonymously …
虚荣心和骄傲是不同的心态，虽然这两个词常常同义地使用。
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Nomenclature: Spontaneous osteonecrosis of the knee (SONK) was previously used synonymously, but term is considered misnomer given underlying etiopathogenesis corresponds to insufficiency fracture.