练习材料：
We have an old musical instrument. It is called a clavichord. It was made in Germany in 1681. Our clavichord is kept in the living-room. It has belonged to our family for a long time. The instrument was bought by my grandfather many years ago. Recently it was damaged by a visitor. She tried to play jazz on it! She struck the keys too hard and two of the strings were broken. My father was shocked. Now we are not allowed to touch it. It is being repaired by a friend of my father's.
wiː hæv ən əʊld ˈmjuːzɪkəl ˈɪnstrʊmənt. ɪt ɪz kɔːld ə ˈklævɪkɔːd. ɪt wɒz meɪd ɪn ˈʤɜːməni ɪn sɪksˈtiːn ˈeɪti wʌn . ˈaʊə ˈklævɪkɔːd ɪz kɛpt ɪn ðə ˈlɪvɪŋ-ruːm. ɪt hæz bɪlɒŋd tuː ˈaʊə ˈfæmɪli fɔːr ə lɒŋ taɪm. ði ˈɪnstrʊmənt wɒz bɔːt baɪ maɪ ˈgrændˌfɑːðə ˈmɛni jɪəz əˈgəʊ. ˈriːsntli ɪt wɒz ˈdæmɪʤd baɪ ə ˈvɪzɪtə. ʃiː traɪd tuː pleɪ ʤæz ɒn ɪt! ʃiː strʌk ðə kiːz tuː hɑːd ænd tuː ɒv ðə strɪŋz wɜːˈbrəʊkən. maɪ fɑːðə wɒz ʃɒkt. naʊ wiː ɑː nɒt əˈlaʊd tuː tʌʧ ɪt. ɪt ɪz ˈbiːɪŋ rɪˈpeəd baɪ ə frɛnd ɒv maɪ ˈfɑːðəz.
任务配置：L0+L4
知识笔记：
练习感悟：Ծ‸Ծ就像每天都在练习原地踏步走一样，昨天又落下了……
