01 / 14Big Think≈ livello approssimativoB11:46–1:50 .
02 / 14PBS NewsHour≈ livello approssimativoA24:18–4:23
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03 / 14TED-Ed≈ livello approssimativoC12:57–3:06
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04 / 14BBC Learning English≈ livello approssimativoA21:40–1:48
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05 / 14TED-Ed≈ livello approssimativoB12:11–2:16
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06 / 14PBS NewsHour≈ livello approssimativoB16:39–6:49
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07 / 14BBC Learning English≈ livello approssimativoA25:10–5:15
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08 / 14NBC News≈ livello approssimativoC10:00–0:09
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09 / 14TED-Ed≈ livello approssimativoB20:45–0:52
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10 / 14TED≈ livello approssimativoB21:21–1:32
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11 / 14TED-Ed≈ livello approssimativoB23:23–3:34
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12 / 14Big Think≈ livello approssimativoB13:13–3:24
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13 / 14TED-Ed≈ livello approssimativoC14:37–4:48
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14 / 14TED-Ed≈ livello approssimativoC12:13–2:29
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