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
6:46
Educational
Adam Smith's Invisible Hand Theory Explained | Economics
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
Seven Worlds, One Prehistoric Planet: Mashup V. II (ft Sia and Hans Zimmer)
B1
4:02
The Two Towers ~ Extended Edition ~ The Final Count HD
B1
0:41
Conan Plays Australian Rules Football With The Sydney Swans | CONAN on TBS
B1
6:16
Elton John - Circle of Life (From "The Lion King"/Official Video)
B1
4:57
Se3 All Epic Travel Moments from Succession | HBO | Video 3 of 4
B1
15:00
Federal Reserve Bank of St. Louis
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
