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
Aberfan remembered: Disaster in the Welsh valleys - BBC News
B1
3:17
Quantum Computers Explained – Limits of Human Technology
B1
7:17
Game of Thrones - Best scenes in season 7 (HD)
B1
12:15
The Art and Science of Creativity - [English]: Tom Kelley at TEDxTokyo
B1
12:53
CONCENTRATE ON YOURSELF NOT OTHERS | Sadhguru's Life-Changing Speech!
B1
10:26
Venus ♏
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
