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02 / 15TED-Ed≈ perkiraan levelB21:36–1:45
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03 / 15PBS NewsHour≈ perkiraan levelC15:01–5:10
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04 / 15NBC News≈ perkiraan levelB12:10–2:16
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06 / 15Sprouts≈ perkiraan levelC15:20–5:31
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08 / 15TED-Ed≈ perkiraan levelA21:26–1:31
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10 / 15Sprouts≈ perkiraan levelB12:06–2:12
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11 / 15The School of Life≈ perkiraan levelC10:43–0:51
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12 / 15NBC News≈ perkiraan levelC10:39–0:49
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13 / 15PBS NewsHour≈ perkiraan levelC17:28–7:46
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15 / 15WIRED≈ perkiraan levelC11:14–1:29
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