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The Dangers of Eye Floaters: When to Worry05:43

The Dangers of Eye Floaters: When to Worry

11000
B1
How Glasses Make Your Eyesight Worse | Endmyopia | Jake Steiner01:38

How Glasses Make Your Eyesight Worse | Endmyopia | Jake Steiner

12926
B1
Retinal detachment14:53

Retinal detachment

210
B2
Screens are NOT the reason kids need glasses ?02:27

Screens are NOT the reason kids need glasses ?

21912
B2
Tennis Trick Shots04:21

Tennis Trick Shots

232
A2
Tennis Doubles Strategy : How to Improve Net Play in Tennis01:39

Tennis Doubles Strategy : How to Improve Net Play in Tennis

123
B1
The Human Eye for Kids | Learn why and how eyes allow us to see07:46

The Human Eye for Kids | Learn why and how eyes allow us to see

117
B1
Why so many people need glasses now06:46

Why so many people need glasses now

28420
B1
How Your Eyes Work05:10

How Your Eyes Work

774
B1
Tennis Grips04:09

Tennis Grips

243
B1
解碼自然：讓「樹木」聊天的地下網路系統《國家地理》雜誌03:38

解碼自然：讓「樹木」聊天的地下網路系統《國家地理》雜誌

38
B1
Could Solar Storms Destroy Civilization? Solar Flares & Coronal Mass Ejections09:43

Could Solar Storms Destroy Civilization? Solar Flares & Coronal Mass Ejections

71
B2
Wheel Chair Tennis Tips : Wheelchair Tennis Movement Strategies01:16

Wheel Chair Tennis Tips : Wheelchair Tennis Movement Strategies

62
A2
Road to the Future05:00

Road to the Future

24959
A1
Racing to Save Dying Coral Reefs06:18

Racing to Save Dying Coral Reefs

11818
B2
動物界の「目」全種類を解説 | WIRED Japan36:25

動物界の「目」全種類を解説 | WIRED Japan

12
B1
アメリカのエネルギー省で働いてるけど質問ある？ | Tech Support | WIRED.jp17:44

アメリカのエネルギー省で働いてるけど質問ある？ | Tech Support | WIRED.jp

20
B1
How to Give a Spider an Eye Test | ScienceTake02:00

How to Give a Spider an Eye Test | ScienceTake

7241
B1
Tennis Lessons for Beginning Players : Basic Rules of Tennis02:40

Tennis Lessons for Beginning Players : Basic Rules of Tennis

162
A2
The Sun Could Destroy the Earth in 202507:06

The Sun Could Destroy the Earth in 2025

54
B1
KT Tape: Tennis Elbow03:00

KT Tape: Tennis Elbow

329
B2
All About Science And Nature | September 21, 202110:01

All About Science And Nature | September 21, 2021

3045
B2
Facts about Snails | Ferne & Rory's Teeny Tiny Creatures | CBeebies01:16

Facts about Snails | Ferne & Rory's Teeny Tiny Creatures | CBeebies

3901
B2
The Lymphatic System Overview, Animation04:35

The Lymphatic System Overview, Animation

19721
C1
The Rules of Tennis - EXPLAINED!04:05

The Rules of Tennis - EXPLAINED!

941
A2
Taiwan Global News: Artificial baseball fans -05:26

Taiwan Global News: Artificial baseball fans -

361
A2
NCLE ASTIGMATISM MADE EASY #112:28

NCLE ASTIGMATISM MADE EASY #1

11
B1
Tennis - Motivational Video02:48

Tennis - Motivational Video

216
A2
Tennis star Ana Ivanovic on the PlaySight SmartCourt01:37

Tennis star Ana Ivanovic on the PlaySight SmartCourt

172
A2
是誰讓ROSÉ傷心了？全網通緝這位「前任」01:24

是誰讓ROSÉ傷心了？全網通緝這位「前任」

42
A2
Tennis Training Myth - Tennis Forehand Backswing - Right Handed Training Video02:06

Tennis Training Myth - Tennis Forehand Backswing - Right Handed Training Video

253
B1
How to Serve Faster | Tennis Lessons02:46

How to Serve Faster | Tennis Lessons

223
B1
Human Eye | #aumsum10:58

Human Eye | #aumsum

92
B2
Improve Your Second Serve | Tennis Serve Lesson08:16

Improve Your Second Serve | Tennis Serve Lesson

20
A2
What if all humans on Earth disappeared? | BBC Ideas03:39

What if all humans on Earth disappeared? | BBC Ideas

47904
B2
Why the Sun is incredible | BBC Ideas04:46

Why the Sun is incredible | BBC Ideas

18951
B1
What If We Built a Road Around the World?07:32

What If We Built a Road Around the World?

1753
A2
How to fix our unreliable power grid03:40

How to fix our unreliable power grid

44
B1
Are solar storms a threat to humanity? | Michelle Thaller | Big Think05:06

Are solar storms a threat to humanity? | Michelle Thaller | Big Think

18
B1
Why The Sun May Suddenly Destroy All of Our Electronics06:20

Why The Sun May Suddenly Destroy All of Our Electronics

14
B1
Fans return to Australian Open after lockdown00:47

Fans return to Australian Open after lockdown

5
A2
3 Tips to Improve Table Tennis Serve | Ping Pong02:37

3 Tips to Improve Table Tennis Serve | Ping Pong

79
A2
Why Serena Williams’ Serve Dominates Tennis06:41

Why Serena Williams’ Serve Dominates Tennis

31
B1
What's inside a Tennis Ball?05:05

What's inside a Tennis Ball?

168
B1
Australian Open: How Tennis navigated the pandemic - BBC News05:44

Australian Open: How Tennis navigated the pandemic - BBC News

5
B1
Facts about Frogs | Ferne & Rory's Teeny Tiny Creatures | CBeebies00:57

Facts about Frogs | Ferne & Rory's Teeny Tiny Creatures | CBeebies

24
B1