Toggle navigation
Login
or
Signup
Signup
A1 “Beginner”
Level 1 - A1
A2 “Elementary”
Level 2 - A2
B1 “Intermediate”
Level 3 - B1
B2 “Upper Intermediate”
Level 4 - B2
C1 “Advanced”
Level 5 - C1
Why You Should Donate Your Brain to Science!
English —
Unit 17
view on YouTube
by
Seeker
speed
0.50x
0.75x
normal
1.25x
1.5x
2.0x
show transcript
hide transcript
full transcript
full
...
Signup to study these words!
Previous media: Space tourism will lift-off in 2018 | The Economist
Watch more: Horizon explores the existence of Zoos - Horizon: Should We Close Our Zoos? - BBC Two
