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
14:21
Educational
Immunology | Immune System: 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
"Up - Memories Can Weigh You Down" scene (Up Movie - 2009)
B1
1:50
How the lead industry lied to the public for decades - Gerald Markowitz and David Rosner
B2
5:05
Recreational Learning Ft. Vsauce's Michael Stevens
B1
4:03
The Office Wedding Dance - The Office
B1
4:15
Differential equations, a tourist's guide | DE1
B1
27:16
Ninja Nerd
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
