A trombone is a large brass musical instrument. You blow into a small cup-shaped mouthpiece, and you change the notes by pushing a long U-shaped tube — the slide — in and out with your right hand.

A trombone is a large brass musical instrumentTrombone是一種大型的銅管樂器。You blow into a small cup-shaped mouthpiece你對著一個小小的杯狀吹嘴吹氣，and you change the notes by pushing a long U-shaped tube — the slide — in and out with your right hand用右手把一根長長的U型管子——也就是滑管——推進推出來改變音高。

That slide is what makes it special: almost every other brass instrument uses buttons called valves, which give you fixed notes, but the trombone's slide moves smoothly, so it can glide between notes. That sliding sound is used in cartoons and comedy for a falling, disappointed noise, and in jazz for a warm, singing line.

That slide is what makes it special那根滑管就是它特別的地方：almost every other brass instrument uses buttons called valves幾乎其他所有銅管樂器都用叫做活塞（valves）的按鍵，which give you fixed notes音高是固定的，but the trombone's slide moves smoothly但trombone的滑管可以平滑移動，so it can glide between notes所以能在音與音之間滑動。That sliding sound is used in cartoons and comedy for a falling, disappointed noise那種滑音的聲音，卡通和喜劇裡拿來當作往下墜、失望的音效，and in jazz for a warm, singing line在爵士樂裡則用來表現溫暖、如歌的旋律線。

Its sound is deep and strong, lower than a trumpet. You will find trombones in orchestras, in marching bands, in jazz bands, in church bands and in school music rooms.

Its sound is deep and strong它的聲音低沉有力，lower than a trumpet比trumpet小號還低。You will find trombones in orchestras, in marching bands, in jazz bands, in church bands and in school music rooms你會在管弦樂團、遊行樂隊、爵士樂團、教會樂隊和學校音樂教室裡找到trombone。

A person who plays one is a trombonist, or informally a trombone player. It is usually counted with the word play: "she plays the trombone." There is also a technical use in telephone and network engineering — traffic that goes out to a distant point and comes straight back, called trombone routing, named after the shape of the slide going out and back — but that is specialist, and your students are unlikely to meet it.

A person who plays one is a trombonist, or informally a trombone player演奏這個樂器的人叫trombonist長號手，口語一點會說trombone player。It is usually counted with the word play這個字通常跟play一起用："she plays the trombone."「she plays the trombone她吹長號」。There is also a technical use in telephone and network engineering在電話和網路工程裡也有一個技術性的用法——traffic that goes out to a distant point and comes straight back訊號跑到一個遠方的點又直接繞回來，called trombone routing叫做trombone routing，named after the shape of the slide going out and back取名自滑管來回滑動的形狀——but that is specialist, and your students are unlikely to meet it不過那是專業術語，你的學生應該不太會遇到。