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02 / 15TED-Ed≈ livello approssimativoB21:36–1:45
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04 / 15NBC News≈ livello approssimativoB12:10–2:16
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06 / 15Sprouts≈ livello approssimativoC15:20–5:31
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10 / 15Sprouts≈ livello approssimativoB12:06–2:12
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11 / 15The School of Life≈ livello approssimativoC10:43–0:51
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12 / 15NBC News≈ livello approssimativoC10:39–0:49
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13 / 15PBS NewsHour≈ livello approssimativoC17:28–7:46
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15 / 15WIRED≈ livello approssimativoC11:14–1:29
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