[lesson: 071 - 0/1/1]
Questions and Answers. 71. Technological advancements
/ ˈkwes-ʧənz ənd ˈɑːn-səz ˈsevn-ti wʌn ˌtek-nə-ˈlɒ-ʤɪ-kəl ədˈvɑːnsmənts /
Phát âm
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