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20、 Obama

Collected Videos
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Collected Videos

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07:28

Geography Now! Albania

81

B1 Intermediate
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17:50

Geography Now! SOUTH KOREA (ROK)

25

B1 Intermediate US
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11:27

Geography Now! Jamaica

117

B1 Intermediate US
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16:28

Largest cities in the USA summarized (PART 2)…

142

B1 Intermediate US
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10:59

Geography Now! Belgium

111

B1 Intermediate US
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10:05

Geography Now! Austria

129

B1 Intermediate US
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16:20

Geography Now! Japan

239

B1 Intermediate US
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15:21

Geography Now! Germany

196

B1 Intermediate US
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16:51

Geography Now! France

182

B1 Intermediate US
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19:50

Geography Now! China

998

B1 Intermediate US
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12:58

Geography Now! Canada

58

B1 Intermediate US
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14:53

Geography Now! Indonesia

201

B1 Intermediate US
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16:11

Geography Now! North Korea (DPRK)

188

B1 Intermediate US
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13:26

Geography Now! MALAYSIA

40

B1 Intermediate US
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19:11

Geography Now! India

60

B1 Intermediate US
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11:16

Geography Now! Cambodia

230

B1 Intermediate US
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09:29

Cycles in the Sky: Crash Course Astronomy #3

955

B1 Intermediate US
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11:17

Naked Eye Observations: Crash Course Astronomy…

1730

B1 Intermediate US
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12:12

Introduction to Astronomy: Crash Course Astronomy…

810

B2 High-Intermediate US
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11:11

How Close Are We to a Complete Tree of Life?

48

B1 Intermediate US
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06:13

◄ Appian Way, Rome [HD] ►

314

B1 Intermediate
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30:59

Jared Rutter (U. Utah, HHMI) 1: Mitochondria:…

52

B2 High-Intermediate US
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08:05

Helium flash | Wikipedia audio article | Wikipedia…

34

B2 High-Intermediate US
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05:21

Cell membranes are way more complicated than you…

717

B2 High-Intermediate US
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04:31

【TED-Ed】Why it’s so hard to cure HIV/AIDS - Janet…

12759

B1 Intermediate US
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16:36

The Life and Death of Stars: White Dwarfs, Supernovae,…

137

B2 High-Intermediate US
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10:01

Back-and-Forth: U.S. and Iran | January 6, 2020

13974

B1 Intermediate US
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59:00

BBC Building the Ancient City Athens and Rome…

951

B1 Intermediate UK
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03:51

Florence Vacation Travel Guide | Expedia

1818

B2 High-Intermediate
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08:32

The Pantheon

16214

B1 Intermediate US
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01:44

T-Cell Transfer Therapy

58

B1 Intermediate US
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47:01

The Dark History of the House of Caesar: The Rise…

42

B2 High-Intermediate US
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17:49

Zeresenay Alemseged: Finding the origins of humanity

1002

B1 Intermediate US
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16:08

Louise Leakey: Digging for humanity's origins

404

B1 Intermediate US
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04:34

The secret language of trees - Camille Defrenne…

700

B2 High-Intermediate US
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18:25

【TED】Suzanne Simard: How trees talk to each other…

3311

B2 High-Intermediate US
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04:58

Why isn't the world covered in poop? - Eleanor…

23218

B2 High-Intermediate US
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04:47

The surprising reasons animals play dead - Tierney…

12366

C1 Advanced US
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04:10

【TED-Ed】What is an aurora? - Michael Molina

39447

B2 High-Intermediate US
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04:57

Why are fish fish-shaped? - Lauren Sallan

2863

B2 High-Intermediate US
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04:46

How turtle shells evolved... twice - Judy Cebra…

117

B2 High-Intermediate US
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06:07

【TED-Ed】History vs. Genghis Khan - Alex Gendler

1595

B2 High-Intermediate US
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05:04

Inside the killer whale matriarchy - Darren Croft

631

B1 Intermediate US
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05:13

【TED-Ed】Why do whales sing? - Stephanie Sardelis

869

B2 High-Intermediate US
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04:49

How does hibernation work? - Sheena Lee Faherty

28198

C1 Advanced US
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04:54

Why are earthquakes so hard to predict? - Jean-Baptiste…

259

B2 High-Intermediate US
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05:00

How ESA’s Dark Energy Telescope Will Map the ‘Dark…

41

B2 High-Intermediate
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05:32

How We Are Going to the Moon - 4K

301

B2 High-Intermediate US

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liu3907

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Achievements

Collection	Time
0	357

劉源清 Collection

geography 15
速成課程天文學 2
Rome 1
universe 1
human 1
biology 2

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Scores	Watched Videos
0	21

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