01 / 15Big Think≈ approximate level A20:20–0:30 .
02 / 15CrashCourse≈ approximate level C18:54–9:00
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03 / 15Big Think≈ approximate level C10:31–0:37
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04 / 15TED≈ approximate level C111:50–11:55
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05 / 15TED≈ approximate level B13:21–3:32
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06 / 15CrashCourse≈ approximate level B28:05–8:11
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07 / 15TED-Ed≈ approximate level B24:23–4:32
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08 / 15Big Think≈ approximate level B12:02–2:09
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09 / 15Big Think≈ approximate level B11:14–1:17
.
10 / 15BBC Learning English≈ approximate level A23:07–3:11
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11 / 15BBC Learning English≈ approximate level B15:33–5:39
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12 / 15The Tonight Show≈ approximate level B20:09–0:20
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13 / 15Vogue≈ approximate level C15:44–5:56
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14 / 15BBC Ideas≈ approximate level B14:15–4:32
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15 / 15NBC News≈ approximate level C14:05–4:16
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