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
introvert diaries 📓 productive days in my life, studying for a midterm, morning routine & self care
B1
14:07
Capitalism and Socialism: Crash Course World History #33
B1
14:03
Ahsoka vs Anakin and Vader (Full Fight) - Star Wars: Ahsoka
B1
4:10
Top 20 Satisfying Moments in Game of Thrones
B1
22:58
How do airplanes actually fly? - Raymond Adkins
B1
5:03
TED-Ed
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
