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
Did People Used To Look Older?
B1
22:54
UK's first small nuclear power station to be built in north Wales | BBC News
B1
2:37
Brisbane overtakes Melbourne to become Australia's second most expensive housing market | ABC NEWS
B1
6:03
I Tried Andrew Huberman's Morning Routine for 30 Days
B1
14:06
The California Gold Rush cartoon 1849 (The Wild West)
B1
2:17
NBC
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
