单词	trombone
释义	trombonetrombone /trɑmˈboʊn/ noun [countable] Etymology ETYMOLOGYtrombone Origin: 1700-1800 Italian tromba trumpet eng. lang. arts a large musical instrument made of metal that you blow into, and which has a long tube that you slide in and out to change the notes
随便看	flunk flunky fluorescence fluorescent fluoridate fluoridation fluoride fluorine fluorocarbon flurry flush flushed fluster flustered flute fluted flutist flutter fluvial flux fly fly ball flyboy flyby fly-by-night

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