The video owner has disabled playback on external websites.
This video is no longer available on YouTube.
This video cannot be played right now.
Watch on YouTube
互动模式
测验
正确！
不太对。
正确答案：
相关视频
'Real possibility' elections could lead to break up of UK, says Wales' first minister
B1
7:47
How do fireflies create light? - Emily A. Geest
B2
5:05
What Is Data Analytics? - An Introduction (Full Guide)
B1
9:04
Bryan Cranston gets emotional talking Jane's death scene in BREAKING BAD
B1
4:14
Niki Lauda Full Episode (Tribute)
B1
21:07
Seinfeld
测验
正确！
不太对。
正确答案：
观看视频时会出现测验
记忆技巧
来自此视频
免费开始学语言
