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
Epstein Emails Say Trump "Knew About the Girls"
B1
14:12
Tom Hanks on Living in New York, Meeting Joe DiMaggio & His New Play This World of Tomorrow
B1
15:08
The King's Man - Melee combat in no man's land
B1
4:25
What's so special about the Mandelbrot Set? - Numberphile
B1
16:53
IRON MAN 3 CLIP COMPILATION (2013) Marvel
B1
9:47
BBC News
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
