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
How to Trisect an Angle with Origami - Numberphile
学习统计
CEFR 等级
难度
评论 (0)
登录后评论互动模式
测验
正确答案:
相关视频
Alan Turing: Great Minds
5 Giant Ice Age Animals | Natural History for Kids
No Time To Die 4K HDR | Car Chase - Bullet Proof Aston Martin DB5
US: Powerful Storms Slam Pacific Northwest; Triggers Flooding, School Closures | Planet Pulse | N18G
Uno Reverse | Short Horror Film
Numberphile
测验
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