01 / 21TED-Ed≈ mức xấp xỉB21:23–1:28 .
02 / 21TED-Ed≈ mức xấp xỉB13:31–3:37
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03 / 21CNBC Make It≈ mức xấp xỉC10:19–0:22
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04 / 21BBC Earth≈ mức xấp xỉB22:39–2:44
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05 / 21BBC Earth≈ mức xấp xỉB12:33–2:47
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06 / 21TED-Ed≈ mức xấp xỉB22:24–2:28
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07 / 21TED-Ed≈ mức xấp xỉB12:37–2:44
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08 / 21CrashCourse≈ mức xấp xỉC19:06–9:11
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09 / 21CrashCourse≈ mức xấp xỉB24:15–4:21
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10 / 21CrashCourse≈ mức xấp xỉC19:08–9:16
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11 / 21CrashCourse≈ mức xấp xỉC11:12–1:19
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12 / 21TED-Ed≈ mức xấp xỉB12:11–2:24
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13 / 21CrashCourse≈ mức xấp xỉC11:27–1:33
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14 / 21The Daily Show≈ mức xấp xỉB26:11–6:16
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15 / 21TED-Ed≈ mức xấp xỉC11:15–1:21
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16 / 21CNBC Make It≈ mức xấp xỉB20:19–0:22
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17 / 21CNBC Make It≈ mức xấp xỉC10:13–0:20
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18 / 21CrashCourse≈ mức xấp xỉC19:27–9:34
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19 / 21CrashCourse≈ mức xấp xỉC111:25–11:33
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20 / 21CrashCourse≈ mức xấp xỉB28:05–8:13
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21 / 21The School of Life≈ mức xấp xỉC13:50–4:04
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