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
B1 中级
英语
18:21
Educational
The Science of Sleep (and the Art of Productivity) | Dr. Matthew Carter | TEDxNorthAdams
学习统计
B1
CEFR 等级
5/10
难度
评论 (0)
登录后评论
还没有评论。成为第一个分享想法的人！
互动模式
测验
正确！
不太对。
正确答案：
相关视频
The Mandalorian Freezes His Bounty In Carbonite || The Mandalorian 1x01 1080p 60fps
B1
0:58
British is Great: Bonfire night - A Video Lesson from BBC and British Council
B1
4:22
Leonardo DiCaprio on his favourite films, his love of cinema and One Battle After Another
B1
20:29
American Psycho - Office Interrogation - 1080 HD
B1
5:48
Free Solo, Boulder Problem
B1
1:15
TEDx Talks
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
