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
28:32
Educational
The Cardiovascular System: An Overview
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
Steven Spielberg's DUEL film behind the scenes with miniatures. Truck crash climax alternate ending.
B1
3:03
Australia and Indonesia strike landmark security treaty | ABC NEWS
B1
3:24
Tom Hanks on German Autobahn
B1
9:29
How did WW1 Start? | Causes of the First World War
B1
9:20
Lars von Trier -- "I understand Hitler..."
B1
4:26
Strong Medicine
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
