词汇：jazz n.爵士音乐musical a.音乐的instrument n.器具call vt.叫做clavichord n.击弦古钢琴Germany n.德国keep vt.保存living-room n.客厅belong vi.属于recently ad.最近damage vt.损坏play vt.弹奏key n.琴键strike vt.敲hard ad.重重地string n.弦break vt.弄断shock vt.震惊touch vt.碰allow vt.允许repair vt.修理