英式发音：billion, native, attitude, reference, refer 等单词的发音

billion ['bɪljən] native ['neɪtɪv] attitude ['ætɪtjuːd] reference ['refərəns] refer [rɪˈfɜːr] system ['sɪstəm] despite [dɪˈspaɪt] factor ['fæktər] based [beɪst] base [beɪs] bone [bəʊn] shell [ʃɛl] symbol ['sɪmbəl] carve [kɑːv] dynasty ['dɪnəsti] variety [vəˈraɪəti] major ['meɪdʒər] dialect ['daɪəlɛkt] means [miːnz] classic ['klæsɪk] regard [rɪˈɡɑːrd] character ['kærɪktər] calligraphy [kəˈlɪɡrəfi] global ['ɡləʊbəl] affair [əˈfɛər] appreciate [əˈpriːʃɪeɪt] specific [spɪˈsɪfɪk] struggle ['strʌɡəl] tongue [tʌŋ] semester [sɪˈmɛstər] gas [ɡæs] petrol ['pɛtrəl] subway ['sʌbweɪ] apartment [əˈpɑːrtmənt] pant [pænt] beg [bɛɡ] equal ['iːkwəl] gap [ɡæp] demand [dɪˈmænd] vocabulary [vəˈkæbjələri] description [dɪˈskrɪpʃən] relate [rɪˈleɪt]