01 / 17BBC Learning English≈ livello approssimativoA21:17–1:22 ' ' .
02 / 17BBC Learning English≈ livello approssimativoB14:01–4:08
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03 / 17Big Think≈ livello approssimativoC15:38–5:48
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04 / 17PBS NewsHour≈ livello approssimativoA24:50–4:57
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05 / 17CNBC Make It≈ livello approssimativoA21:54–1:57
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06 / 17The Economist≈ livello approssimativoA20:20–0:27
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07 / 17WIRED≈ livello approssimativoB16:17–6:23
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08 / 17PBS NewsHour≈ livello approssimativoC12:37–2:46
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09 / 17Lex Clips≈ livello approssimativoB11:57–2:02
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10 / 17The Economist≈ livello approssimativoA20:43–0:49
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11 / 17TED-Ed≈ livello approssimativoB20:57–1:05
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12 / 17PBS NewsHour≈ livello approssimativoC17:28–7:46
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13 / 17CrashCourse≈ livello approssimativoB20:35–0:45
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14 / 17PBS NewsHour≈ livello approssimativoC11:30–1:40
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15 / 17TED-Ed≈ livello approssimativoC13:23–3:34
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16 / 17The School of Life≈ livello approssimativoC10:51–1:00
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17 / 17TED≈ livello approssimativoB20:11–0:25
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