a large, brass musical instrument that you play by blowing into it and sliding a U-shaped tube in and out to change the length and produce different notes长号;伸缩长号
The main orchestral brass instruments are the horn, trumpet, trombone, and tuba.管弦乐队中主要的铜管乐器包括喇叭、小号、长号和大号。
trombonistnoun[ C ]uk/trɒmˈbəʊ.nɪst/us/trɑːmˈboʊ.nɪst/
someone who plays a trombone长号手
My cousin is a jazz trombonist.我表哥是个爵士乐长号手。
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