01 / 29Big Think≈ approximate level B21:53–1:59 , .
02 / 29BBC Ideas≈ approximate level B11:23–1:27
.
03 / 29BBC Ideas≈ approximate level B20:37–0:43
, .
04 / 29Big Think≈ approximate level B114:17–14:21
.
05 / 29Lex Clips≈ approximate level C14:07–4:15
, , , , .
06 / 29The New Yorker≈ approximate level B10:58–1:03
?
07 / 29TED≈ approximate level B29:46–9:51
, .
08 / 29TED≈ approximate level B19:43–9:46
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09 / 29CrashCourse≈ approximate level B10:27–0:33
— .
10 / 29CrashCourse≈ approximate level B27:45–7:48
.
11 / 29BBC Earth≈ approximate level B21:01–1:07
.
12 / 29Vogue≈ approximate level B210:27–10:37
, .
13 / 29Big Think≈ approximate level B10:10–0:21
.
14 / 29Big Think≈ approximate level B22:21–2:25
, .
15 / 29The Economist≈ approximate level C14:55–5:03
, .
16 / 29WIRED≈ approximate level B211:19–11:32
, , , , .
17 / 29The Daily Show≈ approximate level B14:24–4:26
.
18 / 29BBC Ideas≈ approximate level B11:31–1:40
, .
19 / 29BBC Ideas≈ approximate level A21:02–1:06
.
20 / 29BBC Ideas≈ approximate level A24:12–4:16
.
21 / 29The Tonight Show≈ approximate level A21:39–1:45
-BMW .
22 / 29The Economist≈ approximate level B27:20–7:30
, ?
23 / 29The Economist≈ approximate level B15:33–5:39
.
24 / 29The School of Life≈ approximate level C12:39–2:53
n’t (’s ), , .
25 / 29BBC Ideas≈ approximate level C12:23–2:34
, .
26 / 29PBS NewsHour≈ approximate level B26:24–6:40
, , , .
27 / 29CrashCourse≈ approximate level C17:29–7:38
, , .
28 / 29TED-Ed≈ approximate level B22:12–2:21
, .
29 / 29Big Think≈ approximate level B22:33–2:46
, “ ” , , .