Today's Sentence
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Historians believe it (ice cream) dates back to medieval China, when milk was mixed with other ingredients before being frozen in pools of ice.
Original Video：
CNN10: COVID-19 Vaccine / The Origin of Ice Cream
Key Vocabulary
1. historian
historian
[hɪˈstɔːr.i.ən] (n.)
2. medieval
medieval
[ˌmed.iˈiː.vəl] (adj.)
3. ingredient
ingredient
[ɪnˈɡriː.di.ənt] (n.)
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