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
The First Meeting of EDUtubers! ft. CGPGrey, Vsauce, Smarter Every Day, Numberphile +more
B1
3:03
Trump Kidnaps President Maduro, Targets Venezuelan Oil & Ditches "America First" | The Daily Show
B1
19:38
The collapse of Venezuela, explained
B1
7:31
If you had the chance to be immortal, would you take it? - Sarah Stroud and Michael Vazquez
B2
5:40
Planets in the Solar System for Kids | Learn about the sun and the eight planets
B1
11:23
CGMeetup
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
