chord n. 弦，和音，情绪
例句：He struck a chord on the piano.
例句：Then a leading singer would stand out and recite alone, and thechorus would respond.
例句：Kitty is trying to play the same tune in a different rhythm.
例句：Although the concert ended, the beautiful melody is still in mymind.
例句：The four years in Stanford University is an episode in my life lwould never forget!
jazz n. 爵士乐
例句：I was surprised to see him at the jazz club; I always thought of himas a rather oldgentleman.
例句：The orchestra has several concertengagements.
例句：Tony wrote the words of the song and Kris wrote the tune.
tube n. 管，管子
例句：This tube is flexible but tough.