单词	American gray birch
释义	American gray birch noun : a medium-sized tree (Betula populifolia) of North America having grayish or white bark, triangular leaves, and nearly valueless wood and occurring very commonly as a second-growth forest tree Word History First Known Use 1902, in the meaning defined above
随便看	senecioid senecionine senecios senectitude senectitudes Senecu Senecu del Sur senecus senecus del sur senega senega root Senegal Senegal ebony Senegal gum Senegal mahogany senegales senegalese senegaleses senegals Senegambia senegambian senegambians phenylamines phenylate phenylation

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