练习材料：
Lesson72 A car called Bluebird
The great racing driver, Sir Malcolm Campbell, was the first man to drive at over 300 miles per hour. He set up a new world record in September 1935 at Bonneville Salt Flats, Utah. Bluebird, the car he was driving, had been specially built for him. It was over 30 feet in length and had a 2500 horsepower engine. Although Campbell reached a speed of over 304 miles per hour, he had great difficulty in controlling the car because a tyre burst during the first run. After his attempt, Campbell was disappointed to learn that his average speed had been 299 miles per hour. However, a few days later, he was told that a mistake had been made. His average speed had been 301 miles per hour. Since that time, racing drivers have reached speeds of over 400 miles an hour. Following in his father's footsteps many years later, Sir Malcolm's son, Donald, also set up a world record. Like his father, he was driving a car called Bluebird.
ðə greɪt ˈreɪsɪŋ ˈdraɪvə, sɜː ˈmælkəm ˈkæmb(ə)l, wɒz ðə fɜːst mæn tuː draɪv æt ˈəʊvə 300 maɪlz pɜːr ˈaʊə. hiː sɛt ʌp ə njuː wɜːld ˈrɛkɔːd ɪn sɛpˈtɛmbə 1935 æt Bonneville sɔːlt flæts, ˈjuːtɑː. ˈbluːbɜːd, ðə kɑː hiː wɒz ˈdraɪvɪŋ, hæd biːn ˈspɛʃəli bɪlt fɔː hɪm. ɪt wɒz ˈəʊvə 30 fiːt ɪn lɛŋθ ænd hæd eɪ 2500 hɔːs-ˈpaʊər ˈɛnʤɪn. ɔːlˈðəʊ ˈkæmb(ə)l riːʧt ə spiːd ɒv ˈəʊvə 304 maɪlz pɜːr ˈaʊə, hiː hæd greɪt ˈdɪfɪkəlti ɪn kənˈtrəʊlɪŋ ðə kɑː bɪˈkɒz ə ˈtaɪə bɜːst ˈdjʊərɪŋ ðə fɜːst rʌn. ˈɑːftə hɪz əˈtɛmpt, ˈkæmb(ə)l wɒz ˌdɪsəˈpɔɪntɪd tuː lɜːn ðæt hɪz ˈævərɪʤ spiːd hæd biːn 299 maɪlz pɜːr ˈaʊə. haʊˈɛvə, ə fjuː deɪz ˈleɪtə, hiː wɒz təʊld ðæt ə mɪsˈteɪk hæd biːn meɪd. hɪz ˈævərɪʤ spiːd hæd biːn 301 maɪlz pɜːr ˈaʊə. sɪns ðæt taɪm, ˈreɪsɪŋ ˈdraɪvəz hæv riːʧt spiːdz ɒv ˈəʊvə 400 maɪlz ən ˈaʊə. ˈfɒləʊɪŋ ɪn hɪz ˈfɑːðəz ˈfʊtstɛps ˈmɛni jɪəz ˈleɪtə, sɜː ˈmælkəmz sʌn, ˈdɒnəld, ˈɔːlsəʊ sɛt ʌp ə wɜːld ˈrɛkɔːd. laɪk hɪz ˈfɑːðə, hiː wɒz ˈdraɪvɪŋ ə kɑː kɔːld ˈbluːbɜːd.
任务配置：L0➕L4
感受：继续努力。